DC/DC Converters Selection Guide Rev. 7.0 www.rohm.com Table of Contents Secondary Side Primary Side ROHM Website 2 AC Product Pickup Buck Converter (Integrated Switch FET) AC/DC Transformer 3 Buck Controller (External Switch FET) 15 Isolated DC/DC Power Supply 19 DC Switching Regulator DC/DC PFC Wireless power supply Isolated DC/DC converter Voltage Detector Linear Regulator LDO High-side Switch Lineup Power Supply Block Schematic Chart Single Output Buck Converter (Integrated Switch FET) 21 Dual Output Buck Converter (Integrated Switch FET) 25 Buck Controller (External Switch FET) 25 Boost/Buck-boost/SEPIC and Inverting 26 Product List and Selection Guide Buck Converter (Integrated Switch FET) 27 Boost/Buck-boost/SEPIC and Inverting Converters 33 Isolated DC/DC Power Supply 33 Controller (External Switch FET) 34 DC/DC Converters Selection Guide www.rohm.com ROHM's product lineup covers the entire area of power supplies. This selection guide features DC/DC switching regulators and isolated DC/DC converters. Pages 3 to 20 introduce select products with specific characteristics. Page 3 shows characteristics of the buck converter BD9x families. Pages 5 to 13 introduce buck converters with specific characteristics by input voltage range. Page 14 shows the buck type switching regulators that operate at a maximum 6 MHz. The chip-sized package and coil of low inductor value allow for a miniature power supply configuration that is especially suited for portable equipment. Pages 15 to 18 show controller ICs that allow for power supply configurations for high current output by attaching a MOSFET to the IC external. Page 15 presents an application example that delivers both high-speed load response and high current output in the power supply for FPGA. Page 16 explains ROHM’s proprietary H3RegTM high-speed transient response technology that is used for the controller ICs. Page 17 introduces controllers with a 60V rating and high current applications using ICs. Page 19 features isolated DC/DC switching regulators that assuredly improve reliability as they do not require an optocoupler. Pages 21 to 26 show lineup tables, and Page 27 and following pages show product lists. You can select ICs based on representative values and functions. Before using a ROHM IC, be sure to check its setting values, data and functions against the latest data sheet. 1 ROHM Website For ROHM’s power supply IC lineup, visit the following ROHM website. http://www.rohm.com ROHM provides design and technical data and tools such as data sheets, application notes, technical notes, reference designs and evaluation boards to assist developers. DC/DC Converters http://micro.rohm.com/en/techweb/ http://deviceplus.com/ Before using a ROHM IC, be sure to check its setting values, data and functions against the latest data sheet. 2 DC/DC Converters Selection Guide www.rohm.com Pickup Buck Converter (Integrated Switch FET) BD9x Family System Diagram 24V Input power rail voltage 12V 5.0V 3.3V Current mode control BD9B100 BD9B200 BD9B300 BD9B400 BD9B500 BD9B600 1A 2A 3A 4A 5A 6A *1 *1 *1 *1 *1 *1 BD9C301 BD9C401 BD9C501 BD9C601 On-time control 3A 4A 5A 6A Current mode control BD9Exxx Series BD9Dxxx Series BD9D320 3A BD9D321 3A *1 On-time control Pin compatible *1 *1 *1 *1 BD9Cxxx Series Pin compatible 1A 3A 4A 6A BD9Bxxx Series Pin compatible BD9A100 BD9A300 BD9A400 BD9A600 *2 Pin compatible Pin compatible Pin compatible BD9Axxx Series BD9E100 BD9E101 BD9E102 BD9E300 BD9E301 BD9E302 BD9E303 1.0A 1.0A 1.0A 2.5A 2.5A 3.0A 3.0A 1MHz 570kHz 570kHz *1 1MHz 570kHz 570kHz *1 300kHz Current mode control *1: Automatic switching from PWM to PFM at light load *2: CRs with a single pin must be replaced by a jumper resistor. The above diagram shows the buck The BD9Bxxx Series, in the other green The BD9Cxxx Series in the blue group light-load high efficiency modes. ICs in converter BD9x Family systems. These group, adopts on-time control and supports an input power rail voltage of this series are pin-compatible, which lists are color-coded and ICs of the same supports output currents of 1A, 2A, 3A, 12V. As a secondary power supply, it is enables easy replacement according to color are pin-compatible. The BD9Axxx 4A, 5A and 6A. This series offers faster available with a 5V input. This series efficiency requirements under light load. Series in the green group supports input load response characteristics and higher adopts current mode control and supports The BD9Exxx Series in the red group power rail voltages of 3.3V and 5.0V. efficiency at light load than the BD9Axxx output current of 3A, 4A, 5A and 6A. ICs supports input power rail voltages of 12V This series adopts current mode control, Series. ICs of the BD9Bxxx Series are in this series are pin-compatible. and 24V. This series adopts current mode supports output currents of 1A, 3A, 4A also pin-compatible. Moreover, ICs are The BD9Dxxx Series in the orange group control and supports output currents of 1A, and 6A, and features high-speed load pin-compatible between the BD9Axxx supports an input power rail voltage of 2.5A and 3A and switching frequencies of response characteristics. Since ICs of this Series and BD9Bxxx Series, which 12V. As a secondary power supply, it is 300 kHz, 570 kHz and 1MHz. ICs of 1A series are pin-compatible, replacement is enables easy replacement in the event of available with a 5V input. For the output and 3A include models that ensure high easy even when the current design value urgent design changes, such as in a case current, only a 3A type is available, but it efficiency under light load. changes. where a faster load response is required. includes two IC models with/without the DC/DC Converters Selection Guide www.rohm.com 3 BD9x Family Lineup ○ - Current Mode Control ◎ - On-time Control ▼ - Light Load Mode △ - Nonsynchronous ◎ BD9F800MUX 8.0 6.0 Maximum Rating ROHM’s single output buck DC/DC converters provide a power supply solution that satisfies your specification requirements based on a matrix of input voltage and output current. In the product name of BD9x Family, the numeric value “9” following “BD” represents the “buck” topology, the subsequent alphabet represents the maximum rated input voltage and the subsequent numeric value represents the output current. 30V ○ BD9C601EFJ 20V ○ BD9C501EFJ 20V ○ BD9C401EFJ 20V ◎ BD9B600MUV ▼ ○ BD9A600MUV ▼ 5.0 ◎ BD9B500MUV ▼ ◎ BD9B400MUV ▼ 4.0 Part No. Description Output Current (A) ○ BD9A400MUV ▼ 3.0 ◎ BD9D321EFJ ▼ 20V ◎ BD9D320EFJ 20V ○ BD9C301FJ / BD9C301FJ-LB 20V SW=570kHz ◎ BD9B300MUV / BD9B301MUV-LB ▼ B ○ BD9G341AEFJ △ 9 Topology 9 : Buck 8 : Boost, Buck-Boost, Inverting ○ BD9E301EFJ-LB 40V ○ BD9E300EFJ-LB 40V ○ BD9E151NUX △ 30V ○ BD9E102FJ ▼ 30V ○ BD9E101FJ-LB 40V Maximum Rated Input Voltage and Control Mode A : ≤ 7V Current Mode B : ≤ 7V On-time C : ≤ 20V Current Mode D : ≤ 20V On-time E : ≤ 40V Current Mode F : ≤ 40V On-time G : ≤ 80V Current Mode ○ BD9E100FJ-LB 40V Note: There are some part numbers that do not conform with this rule ○ BD9G101G △ 45V SW=570kHz ◎ BD9B100MUV ▼ SW=1MHz ○ BD9A100MUV / BD9A101MUV-LB ▼ 0.5 3.3 5.0 Serial No. 00, 01, 02, ・・・ 40V SW=570kHz 1.0 0 ○ BD9E303EFJ-LB ◎ BD9B200MUV ▼ 1.2 0 30V SW=1MHz 2.0 3 ○ BD9E302EFJ ▼ SW=570kHz 2.5 A 80V SW=300kHz ○ BD9A300MUV / BD9A301MUV-LB ▼ D 12 24 Output Current 1 : ≤ 1A 2 : ≤ 2A 3 : ≤ 3A 4 : ≤ 4A ・ ・ A:≤ 10A ・ Z : Controller 48 Input Power Rail Voltage (V) 4 DC/DC Converters Selection Guide www.rohm.com Pickup Buck Converter (Integrated Switch FET) 3.3V/5V Power Rail Input BD9B300MUV light-load automatic switching mode Power Supply Solution for Consumer Equipment BD9A300MUV light-load automatic switching mode The BD9A100MUV, BD9A300MUV, BD9A600MUV and BD9B300MUV generate a low voltage of about 1.8 V from power supplies of 5V or 3.3V. 5V or 3.3V PC/Tablet board BD9A300MUV or BD9A600MUV 3.3V, 3A 3.3V, 6A 100 90 NAND Flash Memory 80 Enable BD9A100MUV EFFICIENCY (%) Example: Storage 70 1.8V, 1A DDR Memory 2.5V, 1A BD9A100MUV 1.2V, 3A BD9B300MUV Controller - DDR controller - NAND Flash controller - I/F - I/O 60 50 40 Conditions VIN = 5.0V VOUT = 1.8V fSW = 1MHz 30 20 10 0 0.001 Product example: BD9B300MUV Input voltage range : 2.7V to 5.5V Output voltage range : 0.8V to (VIN×0.8)V Reference-voltage : 0.8V±1.0% Output current : 3A Switching frequency : 1MHz / 2MHz Integrated switch FET : 35mΩ Current consumption : 35μA High speed transient response characteristics with constant-on-time control Light-load high-efficiency mode Selectable between light-load automatic switching mode and PWM constant mode Adjustable soft start Power good output Various protection functions Over current protection (OCP), short-circuit protection (SCP), thermal shutdown (TSD), undervoltage lockout (UVLO) BD9A300MUV PWM constant mode 0.01 0.1 LOAD CURRENT (A) 1 10 Efficiency vs. Load Current VIN Enable 10µF BD9B300MUV BD9B300MUV PVIN PGD PVIN PGD AVIN AVIN BOOT BOOT EN EN 15mm×8mm PGD CBOOT 0.1µF VOUT AGND AGND SW SW 1.0µH PGND PGND R1 SS CFB 22µF×2 MODE MODE CSS FREQ FREQ FB FB R2 BD9B300MUV Application Circuit BD9B300MUV PCB DC/DC Converters Selection Guide www.rohm.com 5 Selectable from Two Series Depending on the System The BD9AxxxMUV Series and BD9BxxxMUV Series consist of pin-compatible ICs of 1A to 6A. Thus, you can select the best IC for your application. These series operate in the PWM mode for an application with high load current, and automatically switch to power-saving operation with SLLMTM (PFM mode) for an application with low load current. The BD9BxxxMUV is a high-performance version of the BD9AxxxMUV series. Both versions can be interchangeably replaced by changing the PCB layout of a single pin. Also, by drawing a PCB layout compatible with both series in the initial stage of development, ICs can be easily changed. Product name Light-load operation Control mode High performance Upper Compatible BD9B100MUV BD9B200MUV BD9B300MUV BD9B301MUV-LB BD9B400MUV BD9B500MUV BD9B600MUV Constant-on-time Deep SLLM BD9A100MUV BD9A101MUV-LB BD9A300MUV BD9A301MUV-LB BD9A400MUV BD9A600MUV Current mode SLLMTM Functional difference • Constant-on-time control helps implement transient response faster than that of the BD9AxxxMUV. • Phase compensation is unnecessary. • Efficiency across the entire load range is further improved over the BD9AxxxMUV. • The product operates in the light-load automatic switching mode by setting the MODE pin to Low and in the PWM constant mode by setting it to High. • The product operates at 2 MHz by setting the FREQ pin to Low and at 1 MHz by setting it to High. A small 1 μH coil can be used at 2 MHz. • The product operates in the PWM constant mode by setting the MODE pin to Low and in the light-load automatic switching mode by setting it to High. (This Load is the Mode same function as the BD9Bxxx Series, but the logic is reversed.) SLLM : Simple Light PVIN C1 C8 GND SS 9 AGND FB ITH MODE 5 6 7 8 11 BD9B300MUV BD9BxxxMUV 10 3 VOUT GND PGND SS 9 4 C5 4 L1 SW 2 VIN GND PGND 12 C2 VOUT C7 10 3 13 BOOT PVIN 11 BD9A300MUV BD9AxxxMUV C2 C1 GND SW 14 PGD 1 L1 2 VIN 15 EN C8 12 1 16 AVIN C7 13 BOOT C6 14 PGD AGND FB 5 6 FREQ MODE 7 C5 15 EN C6 16 AVIN PGOOD ENABLE PGOOD ENABLE SLLMTM : Simple Light Load Mode (Automatic switching from PWM to PFM in the light-load mode) 8 R1 R1 www.rohm.com J1 J2 Difference in External Components DC/DC Converters Selection Guide J3 R2 J1 R3 C3 R2 C4 6 Pickup Buck Converter (Integrated Switch FET) 3.3V/5V Power Rail Input Thin Type, High-Speed Transient Response Power Supply Solution The BD91364BMUU provides the highest class of transient response in the industry by incorporating constant-on-time control and an overshoot reduction function. The adopted low type package is best suited for mounting on slim equipment. Existing products BD91364BMUU VIN: 5V, VO: 1.2V VIN: 5V, VO: 1.2V 8.5mV VOUT: 50mV/div 88.5mV IO: 1A/div IO = 1A → 3A → 1A IO = 1A → 3A → 1A 100μsec/div 100μsec/div BD91364BMUU High-Speed Transient Response Characteristics Product example: BD91364BMUV Input voltage range : 2.9V to 5.5V Output voltage range : 0.8V to (VIN×0.8)V Reference-voltage : 0.8V±1.5% Output current : 5A Switching frequency : 1.7MHz Integrated switch FET : 27mΩ High speed transient response characteristics with constant-on-time control The light-load automatic switching mode enables high efficiency across the entire load range. The overshoot reduction function reduces the increase in output voltage in the event of rapid changes in load current. Adjustable soft start Power good output Various protection functions Over current protection (OCP), short-circuit protection (SCP), thermal shutdown (TSD), undervoltage lockout (UVLO) Conditions VIN = 5.0V BD91364BMUU - Efficiency vs. Load Current BD91364BMUU Thin Type Package VQFN20U4040M 4.0mm×4.0mm×0.5mm typ typ max 7 DC/DC Converters Selection Guide www.rohm.com C6 VIN 22μH R3 PVCC PVCC 3A output BST BST Enable Power Good EN EN U1 BD91364BMUU C3 Reduced by 29% 0.47μH VOUT SW SW R1 PGD PGD FB FB SS SS RES AGND RES AGND Soft Start 5A output AVCC AVCC PGND PGND C4 22μH BD91364BMUU PCB 17mm×10mm Existing PCB 15mm×16mm R2 Comparison of PCB Mounting Area BD91364BMUU Application Circuit Overshoot Reduction When the load current rapidly reduces, the output voltage increases. Thus, the low-side MOSFET remains ON. At this time, the inclination of the coil current ∆IL becomes -Vo/L. If the slew rate ∆Iout of the load current Iout becomes greater than ∆IL, continuous charging of excess current to the output capacitor increases the output voltage (shown as a dotted waveform). Especially, when the output voltage setting value is low, the value of ∆IL becomes small and a more marked increase in output voltage occurs. The BD91364BMUU activates the overshoot reduction function when the low-side MOSFET remains ON twice as long as PWM operates. By turning OFF both the low-side and high-side MOSFETs and flowing IL through the low-side MOSFET body diode, -Vf voltage is generated in the SW pin. Accordingly, ∆IL becomes (-Vf-Vo)/L, which suppresses charging of excess current to the output capacitor and reduces the increase in output voltage. Inclination ΔIL= 45mV 150mV Dotted lines show operation of the existing product. VOUT : 100mV/div VOUT : 100mV/div SW : 5V/div SW : 5V/div IOUT : 2A/div 4.5A→0A Twice as long as normal LG High time Switching Circuit Output Voltage Transient Characteristics of Existing Product IOUT : 2A/div 4.5A→0A Output Voltage Increase Reduction Effect of Overshoot Reduction 8 DC/DC Converters Selection Guide www.rohm.com Pickup Buck Converter (Integrated Switch FET) 12V Power Rail Input Power Supply Solution for Consumer Equipment The BD9D320EFJ, BD9D321EFJ, BD9C301FJ, BD9C401EFJ, BD9C501EFJ and BD9C601EFJ generate voltages of 5V 100 and 3.3V from a 12V power supply. Isolated AC/DC 12V Example: AV equipment BD9D320EFJ BD9D321EFJ 5V, 3A BD9D320EFJ BD9D321EFJ 5V, 3A BD9D320EFJ BD9D321EFJ 1.8V, 3A BD9D320EFJ BD9D321EFJ 3.3V, 3A 80 Tuner, AV broad 70 EFFICIENCY (%) AC 85 ~ 265 V VOUT =5.0V VOUT = 3.3V VOUT = 1.8V 90 USB ports DDR Memory 60 50 40 30 BD9C301FJ BD9C401EFJ BD9C501EFJ BD9C601EFJ Conditions VIN = 12V 20 Controller - DDR controller - I/F - I/O 3.3V 3A, 4A, 5A, 6A 10 0 0.001 Product example: BD9D321FEJ 0.01 1 10 BD9D321EFJ - Efficiency vs. Load Current Input voltage range : 4.5V to 18V Output voltage range : 0.765V to 7.0V, (VIN×0.07)V to (VIN×0.65)V Reference-voltage : 0.765V±1.5% Output current : 3A VIN Switching frequency : 700 kHz Integrated switch FET : 100mΩ, 70mΩ 10µF×2 High speed transient response characteristics with + 0.1µF constant-on-time control Phase compensation parts are unnecessary. A ceramic capacitor is available for output. Synchronous rectification type Light-load high efficiency mode Adjustable soft start that prevents rush current at power ON Various protection functions CVREG Over current protection (OCP), short-circuit protection (SCP), thermal shutdown (TSD), undervoltage lockout (UVLO) BD9D321EFJ BD9D321EFJ VIN VIN Enable CBOOT EN EN SW SW GND GND VREG VREG SS SS CSS 2.2µH VOUT R1 22µF ×2 FB FB ILOAD 2A/div IO = 1A→3A→1A 100μs/div R2 BD9D321EFJ Transient Response Characteristics 17mm×20mm BD9D321EFJ PCB www.rohm.com VIN = 12V VOUT = 1.8V VOUT 50mV/div BOOT BOOT BD9D321EFJ Application Circuit DC/DC Converters Selection Guide 0.1 LOAD CURRENT (A) 9 Pickup Buck Converter (Integrated Switch FET) 24V Power Rail Input Power Supply Solution for Home Appliances The BD9E102FJ and BD9E302EFJ generate voltages of 5V and 3.3V from power supplies of 24V and 15V. Replacement of the LDO enables energy-savings and reduced heat generation. 100 BD9E102FJ 90 Example: Refrigerator ・ Motor driver ・IPM (Intelligent Power Module) 80 EFFICIENCY (%) 70 AC 85 ~ 265 V Replaces LDO 5.0V, 1A 15V BD9E102FJ Isolated AC/DC Sensor and monitor - Thermistor (Refrigerator) - Thermistor (Freezer) - CO2 sensor 60 50 LDO (BA50BC0WT) 40 30 Replaces LDO 15V BD9E302EFJ 5.0V, 3A Conditions VIN = 12V VOUT = 5.0V 20 Controller - Digital signal controller - Network - Touch screen - Compressor 10 0 1 Product example: BD9E102FJ 10 100 LOAD CURRENT (mA) 1000 BD9E102FJ - Efficiency vs. Load Current Input voltage range Output voltage range : 7.0V to 26V (30V rating) : (VIN×0.143)V to (VIN×0.7)V (VIN×0.143)1.0V VIN 12V Reference-voltage : 0.8V±2.0% Output current : 1.0A 10μF Switching frequency : 570 kHz Supports an input rating of 28V that is greatly demanded for electric home appliances. Enable The excellent efficiency under light load is ideal for equipment that needs to suppress standby power consumption. Integrated switch FET : 250mΩ, 200mΩ High-speed transient response characteristics are delivered by controlling the current mode. Phase compensation can be set easily. Because of synchronous rectification, an external diode is unnecessary. Soft start to prevent rush current at power ON Various protection functions Over current protection (OCP), short-circuit protection (SCP), thermal shutdown (TSD), undervoltage lockout (UVLO) VIN VIN BD9E102FJ BD9E102FJ BOOT BOOT 0.1μF SW SW EN EN 6.8μH VOUT 5.0V 22μF AGND PGND COMP FB COMP AGND PGND FB 430kΩ 82k BD9E102FJ Application Circuit BD9E102FJ Evaluation Board 10 DC/DC Converters Selection Guide www.rohm.com Pickup Buck Converter (Integrated Switch FET) 24V Power Rail Input Power Supply Solution for Industrial Equipment from power supplies of 24V and 12V. AC 85 ~ 265 V Isolated AC/DC BD9E303EFJ-LB 100 The BD9E100FJ, BD9E101FJ, BD9E300EFJ, BD9E301EFJ and BD9E303EFJ generate voltages of 5V and 3.3V 90 24V 5V, 1A BD9E100FJ-LB 80 Base Unit - ASIC 70 BD9E101FJ-LB 5V, 2.5A BD9E300EFJ-LB 1.8V, 3A BD9E303EFJ-LB EFFICIENCY (%) BD9E300EFJ-LB 3.3V, 1A I/O Unit - ASIC 60 50 40 Conditions VIN = 24V VOUT=5.0V 30 Analog Unit - ASIC 20 10 CPU Unit - CPU 0 0 0.5 1 1.5 2 2.5 3 LOAD CURRENT (A) Product example: BD9E303EFJ-LB Efficiency vs. Load Current Long-term supply indispensable for industrial equipment is assured. VIN 24V Supports an input rating of 40V that is greatly demanded for industrial equipment. 10μF Input voltage range : 7.0V to 36V (40V rating) Output voltage range : (VIN×0.06)V to (VIN×0.8)V (VIN×0.06)1.0V Enable Reference-voltage : 1.0V±1.0% Output current : 3.0A Built in low ON-resistance switch FET: 90mΩ, 80mΩ High-speed transient response characteristics are delivered by controlling the current mode. Because of synchronous rectification, an external diode is unnecessary. Soft start to prevent rush current at power ON Various protection functions Over current protection (OCP), short-circuit protection (SCP), thermal shutdown (TSD), undervoltage lockout (UVLO) VIN VIN BD9E303EFJ-LB BD9E303EFJ-LB BOOT BOOT 0.1μF SW EN EN COMP COMP 10μH VOUT 5.0V 22μF×2 AGND AGND PGND PGND FB FB 30k 6800pF 15k 7.5k Efficient heat radiation characteristics owing to exposed pad BD9E303EFJ-LB Application Circuit 11 DC/DC Converters Selection Guide www.rohm.com Selectable According to System The BD9E300EFJ-LB and BD9E303EFJ-LB are both buck DC/DC converters with a power rail input of 24V, but they have been developed based on different concepts. Since the BD9E300EFJ-LB is a high-speed type with a switching frequency of 1 MHz, a small inductor can be used to assure space-savings of the PCB mounting area. Since the BD9E303EFJLB has a integrated FET of low ON-resistance and a low switching frequency of 300 kHz, it assuredly reduces switching-loss and minimizes heat generation with high efficiency. Product name Feature BD9E300EFJ-LB Small space-saving size BD9E303EFJ-LB Low heat generation Switching frequency 1MHz 300kHz Inductor value FET ONresistance Efficiency Output current Maximum Minimum duty ratio duty ratio 4.7μH 170mΩ 140mΩ See the upper-right figure on previous page. 2.5A 70% 15% 27mm×10mm 270mm2 10μH 90mΩ 80mΩ See the upper-right figure on previous page. 3A 80% 6% 33mm×15mm 495mm2 PCB size 24V Small Size Power Supply Solution Product example: BD9G101G VIN 24V BD9G101G VCC VCC 100 BST BST 4.7μF LX LX Enable 6.8μH GND GND FB FB 3.9k 680 www.rohm.com 70 VIN=24V VOUT=5.0V 60 50 40 30 0.1μF BD9G101G Application Circuit 20 10 0 1 SSOP6 2.9mm×2.8mm h: 1.25mm DC/DC Converters Selection Guide 80 VOUT 5.0V 10μF EN EN VIN=12V VOUT=5.0V 90 0.015μF EFFICIENCY (%) DC/DC converter with integrated MOSFET with 45 V rating Input voltage range : 6.0V to 42V (45V rating) Output voltage range : (VIN×0.15)V to (VIN×0.7)V (VIN×0.15)1.0V Reference-voltage : 0.75V±1.5% Output current : 500mA High-speed switching frequency of 1.5 MHz enables use of small size inductor. Diode rectification automatically activates the pulse skip mode under light load to maintain the high efficiency. Integrated High-side switch FET: 800mΩ High-speed transient response characteristics are delivered by controlling the current mode. Built-in phase compensation circuit Soft start to prevent rush current at power ON Various protection functions Over current protection (OCP), thermal shutdown (TSD), undervoltage lockout (UVLO) 10 100 LOAD CURRENT (mA) 1000 BD9G101G - Efficiency vs. Load Current 12 Pickup Buck Converter (Integrated Switch FET) Supporting Maximum 76 V Input Product example:BD9G341AEFJ The BD9G341AEFJ is a 1-ch buck switching regulator with a integrated switch FET of 80 V rating (76 V input). Since sufficient voltage margin is ensured in a 48 V bus line adopted by communication infrastructures, this switching regulator easily enables safe power supply design in high voltage applications such as telephones, routers and base stations. BD9G341AEFJ LX pin voltage 20V/div Input voltage range : 12V to 76V (80V rating) Output voltage range : 1.0V to VIN*1 *1 Limitations apply under some conditions. Reference-voltage : 1.0V±1.5% Output current : 3.0A Integrated switch MOSFET of 80 V rating: 150mΩ High-speed transient response characteristics are delivered by controlling the current mode. Phase compensation can be set easily. Soft start to prevent rush current at power ON Operating frequency can be set from 50 kHz to 750 kHz. Precise EN threshold: ±3% Various protection functions Over current protection (OCP), overvoltage protection (OVP), thermal shutdown (TSD), undervoltage lockout (UVLO) Output current 2A/div IC Surface Temperature in Output Short-Circuit 5ms/div In the event of an output short-circuit, the over current protection circuit is used in the hiccup mode to prevent IC heating and destruction. 100 BD9G341AEFJ 90 BD9G341AEFJ BD9G341EFJ VIN VIN BST BST 10μF 70 0.1μF LX LX EN EN 33μH VOUT 5.0V 100μF RT RT GND GND VC VC Conditions VIN = 48V VOUT = 5.0V fSW=300kHz 80 FB FB EFFICIENCY (%) VIN Competitor product +1.5% +16.3% 60 +21.3% 50 Competitor product 40 30 3k 20 10 750 0 1 BD9G341AEFJ Application Circuit Efficient heat radiation characteristics owing to exposed pads 10 100 LOAD CURRENT (mA) 1000 BD9G341AEFJ - Efficiency vs. Load Current DC/DC Converters Selection Guide www.rohm.com 3000 13 Pickup Buck Converter (Integrated Switch FET) 6 kHz High-Frequency Operating Switching Regulator Input voltage range : 2.3V to 5.5V Output voltage: : 1.0V, 1.2V, 1.25V, 1.3V, 1.8V, 1.83V, 2.5V, 3.0V, 3.3V Output voltage precision: ±2.0% Output current: : 1.0A Switching operation of maximum 6 MHz Ultra-small 1.3 mm × 0.9 mm size chip package High-speed transient response characteristics with hysteresis control eliminate phase compensation. The PWM/PFM automatic switching function delivers high efficiency across the entire load area. The forced PWM mode keeps the switching frequency constant. Soft start to prevent rush current at power ON Various protection functions 7mm×4mm Over current protection (OCP), thermal shutdown (TSD), undervoltage lockout (UVLO) BU90002GWZ PCB EFFICIENCY (%) BU90xxxGWZ Series L : LQM21MPN1R0NG0 (Murata) LOAD CURRENT (mA) BU90xxxGWZ - Efficiency vs. Load Current VOUT 50mV/div Output voltage Product name Input voltage range Switching frequency Maximum output capacitor PWM/PFM automatic switching Forced PFM Forced PWM Package 1.0V BU90008GWZ 2.3V~5.5V 3.6MHz 10μF ✔ - ✔ UCSP35L1 1.2V BU90003GWZ 2.3V~5.5V 4MHz 10μF ✔ - ✔ UCSP35L1 1.25V BU90007GWZ 2.3V~5.5V 4MHz 10μF ✔ - ✔ UCSP35L1 1.3V BU90009GWZ 2.3V~5.5V 4.2MHz 10μF ✔ - ✔ UCSP35L1 1.8V BU90004GWZ BU90054GWZ BU90104GWZ 2.3V~5.5V 5.4MHz 10μF 10μF 100μF ✔ - ✔ UCSP35L1 UCSP30L1 UCSP35L1 1.83V BU90090GWZ 2.3V~5.5V 5.4MHz 10μF ✔ - ✔ UCSP35L1 ✔ UCSP35L1 2.5V BU90005GWZ 2.3V~5.5V 6MHz 10μF - ✔ (100mA max) 3.0V BU90006GWZ 2.3V~5.5V 6MHz 10μF ✔ - ✔ UCSP35L1 3.3V BU90002GWZ 4.0V~5.5V 6MHz 10μF ✔ - ✔ UCSP35L1 UCSP30L1 : 1.3mm×0.9mm×0.33mm UCSP35L1 : 1.3mm×0.9mm×0.4mm DC/DC Converters Selection Guide www.rohm.com IOUT 200mA/div 10μs/div BU90003GWZ Transient Response Characteristics (50mA 350mA) BU90xxxGWZ VIN VIN VIN LW LX 1.0μH VOUT 4.7μF 4.7μF FB FB Enable EN EN MODE MODE GND GND BU90xxxGWZ Application Circuit 14 Pickup Buck Controller (External Switch FET) Power Supply Solution for FPGA The BD95601MUV-LB and BD95602MUV-LB are power supply ICs outfitted with H3RegTM technology that ensures high-speed transient response characteristics required by FPGA. These models generate power supply voltage from a 12 V input voltage, thus satisfying the stringent voltage precision specifications required by FPGA. FPGA Power Board Tree 12V BD95601MUV-LB 1.0V±3.00%, 6A BD95601MUV-LB 1.8V±5.00%, 6A BD95601MUV-LB 2.0V±3.00%, 2A 2.5V±5.00%, 8A BD95602MUV-LB 3.3V±5.00%, 8A BD95601MUV-LB 1.0V±3.00%, 6A BD95601MUV-LB 1.5V/1.35V±5.00%, 4A BD95601MUV-LB 1.2V±2.50%, 4A BD95602MUV-LB Circuit Diagram VIN: 12V, VO: 3.3V BD95602MUV-LB 2ch DC/DC controller equipped with H3RegTM for high-speed transient response Selectable from light-load mode, continuous PWM mode and silent and light-load mode The adjustable soft start function reduces rush current at startup. Power good output Integrated with various protection Input voltage range : 5.5V to 28V functions Output voltage range : 1.0V to 5.5V ・ Automatic reset type over current Reference-voltage: 0.7V±1.0% protection (OCP) Switching frequency : 150kHz to 500kHz ・ Overvoltage protection function DC/DC Converters Selection Guide (OVP) ・ Thermal shutdown function (TSD) ・ Undervoltage lockout function (UVLO) www.rohm.com VOUT: 100mV/div IO: 5A/div IL: 5A/div 20μsec/div BD95602MUV-LB High-Speed Transient Response Characteristics Avnet Inc. Power module board (Kintex-7) for MiniModule Plus development system 15 High-speed Transient Response Technology H3RegTM Control Ensures High-Speed Response to Load Fluctuation Generally, the current mode is used as the switching regulator control mode. However, transient response characteristics for fluctuating load current may not satisfy the required specifications. To solve this problem, it is effective to use a switching regulator in the hysteresis control mode. Constant-on-time control, one of the hysteresis control modes, feeds back a ripple voltage waveform generated by the output voltage and controls switching by comparing the bottom of the ripple voltage against the reference voltage so as to keep the output voltage constant. When the feedback voltage becomes lower than the reference voltage, a one-shot pulse is generated to turn ON the high-side switch, which enables current supply from input to output. In this way, H3RegTM enables successive switching control via a straightforward comparison by a comparator. Since this method substantially eliminates time delays in feedback control, faster transient response characteristics than those in the current mode can be obtained. H3RegTM control is a ROHM proprietary control mode and an advanced version of constant-on-time control. If the load current increases rapidly and, accordingly, the output voltage drops to the point that the feedback voltage does not exceed the reference-voltage even after the specified on-time has passed, H3RegTM control extends the on-time of the high-side switch and supplies more power to accelerate output voltage recovery. This control mode assures faster transient response characteristics than constant-on-time control does. In addition, less frequent switching caused by rapid load fluctuations reduces noise generation. H3Reg Controller SW R IL Q Driver IL IO VOUT Io S SW Vref Constant-On-Time Control Operation Waveform H3RegTM Block Diagram IL Io SW t+α H3RegTM Control Operation Waveform 16 DC/DC Converters Selection Guide www.rohm.com Pickup Buck Controller (External Switch FET) Buck Controller Supporting Maximum 56 V Input Product example: BD9611MUV The BD9611MUV is a rated 60 V synchronous rectification type buck DC/DC controller that enables high voltage input and a wide input voltage range. This model incorporates the control circuit in the PWM and has voltage modes and drive circuit for two external 10V N-ch FETs. The oscillating frequency and soft start time adjustment function, over current protection function and synchronization function with external clock featured in this model enable flexible design. In addition, a low input malfunction prevention circuit (EXUVLO) of precise reference voltage is connected to the CTL pin, and can be adjusted from the VCC-GND resistance ratio. Pre-bias is supported to suppress current incoming from the output side at startup. Input voltage range : 10V to 56V (60V rating) Output voltage range : 1.0V to (VIN×0.8)V Reference-voltage : 0.8V±1.0% Integrated drive circuit for external N-ch FET Gate drive voltage : 9.0V to 11V Pre-bias supported Adjustable soft start that prevents rush current at power ON Operating frequency can be set from 50 kHz to 500 kHz. UVLO value can be set with an external component. Synchronization with external clocks is available. Multi-channel output synchronization using multiple ICs is available. Various protection functions Over current protection (OCP), thermal shutdown (TSD), undervoltage lockout (UVLO) FB CTL VCC CLH CLL RCL INV SS BST BD9611MUV HG REG5 LX RTSS RT REG10 LG SYNC CLKOUT GND PGND 100% Efficiency 95% BD9611MUV Application Circuit VIN=24V VIN=36V 90% 85% VIN=48V 80% Conditions VOUT = 12V fSW = 250kHz 75% 70% 0 2 4 6 8 10 12 Load Current[A] BD9611MUV - Efficiency vs. Load Current VIN = 34V, VOUT = 12V, IO= 0A → 10A BD9611MUV Transient Response Characteristics Efficient heat radiation characteristics owing to exposed pad 17 DC/DC Converters Selection Guide www.rohm.com 200 W Power Supply Solution Input voltage : 40V Output voltage : 24V Output current : 0.01A to 8A Switching frequency : 100kHz 100 90 EFFICIENCY (%) 80 VIN CVCC R7 1 CSS 2 3 16 18 19 17 CLH CLL BST BST 15 HG 14 LX BD9611MUV RB161VA-20 FB FB RT 40 Conditions VIN = 40V VO = 24V fSW = 100kHz 30 20 RSD221N06×3 13 0 TR2 DI1 CBST 12 0 L1 4.7μ H 3 4 5 6 7 8 COUT2 BD9611MUV - Efficiency vs. Load Current CSNB CREG10 11 2 LOAD CURRENT (mA) VOUT COUT1 1 RSD221N06 TR1 SYNC RTSS 7 6 RT LG 50 10 CLO PGND SYNC 10 RCL RCL PGND REG10 9 4 60 RHG RSNB 5 RCL INV CLKOUT C2 R2 BD9611MUV 8 C1 CIN CLL SS SS RTSS RD1 R1 VCC CLH RS GND RT RU1 CTL VCC REG5 REG5 R5 CTL 20 CREG5 70 High-side FET : 56.1℃ CRTSS Inductor : 56.2℃ BD9611MUV 200W Output Application Circuit IC : 57.4℃ Low-side FET : 58.9℃ Ta = 25℃ PCB Temperature Distribution 18 DC/DC Converters Selection Guide www.rohm.com Pickup Isolated DC/DC Power Supply Flyback Converter Product example :BD7F100HFN-LB, BD7F100EFJ-LB The BD7F100HFN-LB and BD7F100EFJ-JB are ICs for newly developed isolated flyback DC/DC converters. Since control of the primary side flyback voltage stabilizes the secondary side output, an output feedback path is unnecessary. This eliminates the optocoupler that is required by general isolated converters to isolate the feedback path. Accordingly, owning to the cost reduction and elimination of components required to ensure a long service-life, unit reliability can be improved. In terms of performance, high-speed load response is implemented using adaptive on-time control and the automatic light-load mode realizes high efficiency across the entire load range. In addition, cross-regulation is dramatically improved. These models are suitable for isolated power supplies for various industries, such as power supplies for isolated gate drivers of inverters. Input voltage range : 3.0V to 40V (45V rating) Switch pin voltage : 50V (60V rating) Switch current limit :1.25A Operating frequency : 400kHz Reference-voltage : ±1.5% High-speed load response is implemented by adaptive on-time control. Frequency-constant operation facilitates EMC solutions. The automatic light-load mode realizes high efficiency across the entire load range. Elimination of components across the isolation boundary improves functional safety. Elimination of components of finite service-life enables long operation. Multi-output configurations of excellent cross-regulation are supported. Load compensation function integrated in the secondary SBD Output voltage can be set from two external resistors and the transformer winding ratio. Integrated soft start function Various protection functions Over current protection (OCP), thermal shutdown (TSD), undervoltage lockout (UVLO) Example: Inverter VIN VOUT_UH BD7F100HFN-LB GND_UH VIN VIN VOUT_UH Isolator MCU Gate Driver GND_UH VIN VIN 24V VIN VIN 10µF 63µH SDX/EN SDX/EN BD7F100HFN-LB BD7F100HFN-LB GND_WH VOUT_WH 7µH VIN REF REF VOUT_WH Gate Driver GND_WH WH GND_WH VOUT_L 47µF SBD VOUT- BD7F100HFN-LB GND_L FB FB COMP COMP AGND AGND VOUT+ 5V, 1A SBD GND_UH BD7F100HFN-LB Isolator BD7F100HFN-LB HSON8 2.90mm×3.00mm×0.60mm UH VOUT_WH VIN 3:1 VOUT_UH SW SW PGND PGND 3.9kΩ BD7F100HFN-LB Application Circuit 24V→5V www.rohm.com DC/DC Converters Selection Guide VIN BD7F100EFJ-LB HTSOP-J8 4.90mm×6.00mm×1.00mm VOUT_L VOUT_L Isolator Gate Driver UL Isolator Gate Driver WL GND_L GND_L 19 1:1:1 VIN 24V VIN VIN 10µF 50µH SDX/EN SDX/EN BD7F100HFN-LB BD7F100HFN-LB REF REF 50µH 10µF Example: RS485 Transceiver Vcc1 SBD 50µH SBD SW SW PGND PGND BD7F100HFN-LB 10µF VOUT-15V, -220mA Vcc1 3.9kΩ BD7F100HFN-LB Application Circuit 24V→±15V 10µH SDX/EN SDX/EN BD7F100HFN-LB BD7F100HFN-LB DI Isolator RS485 transceiver RO 22µF VOUT- SBD 5.25 FB FB SW SW PGND PGND 5.2 8 5.15 3.9kΩ BD7F100HFN-LB Application Circuit 5V→5V MAXIMUM OUTPUT POWER (W) REF REF 7 OUTPUT VOLTAGE (V) COMP COMP AGND AGND 40µH Vcc2 Vcc1 DE VOUT+ 5V, 240mA SBD VIN VIN 10µF MCU 1:2 VIN 5V Vcc2 COM FB FB COMP COMP AGND AGND VOUT+ 15V,220mA SBD 6 5 4 3 2 5.05 5 Without load compensation 4.95 4.9 Conditions VIN = 24V VOUT = 5.0V 4.85 4.8 1 4.75 0 0 0 5 10 15 20 25 30 35 40 45 50 VIN VOLTAGE (V) BD9F100HFN-LB Maximum Output Power vs. Input Power Supply Voltage BD7F100HFN-LB Evaluation Board With load compensation 5.1 200 400 600 800 1000 LOAD CURRENT (mA) Effect of Load Compensation Function “Load compensation function” that corrects output voltage drops caused by the Vf characteristics of the secondary side SBD that is dependent on load current 20 DC/DC Converters Selection Guide www.rohm.com Lineup of Single Output Buck Converters (Integrated Switch FET) Unless otherwise specified: - Current mode control - Soft start - Synchronous rectification - Enable ○ - On-time control ◎ - H3RegTM control - PWM mode - Light-load efficiency 5V 3.3V 12V ○ 8.0 - Maximum rating 30V PGD BD95500MUV 20V Package 0.3 / 0.6 PGD , Adj.SS 0.2 to 1.0 0.765 to (VIN×0.7) (VIN×0.7) ≤ 13.5V VQFN11X3535M 0.7 to 5.0 VQFN040V6060 0.35 to 0.8 BD9A600MUV PGD , Adj.SS 1.0 0.8 to (VIN×0.7) VQFN016V3030 2.9V BD9B600MUV PGD , Adj.SS 1.0 / 2.0 0.8 to (VIN×0.8) VQFN016V3030 0.5 (VIN×0.075) to (VIN×0.7) (VIN×0.075) ≥ 0.8V HTSOP-J8 1.7 0.8 to (VIN×0.8) VQFN20U4040M 1.0 / 2.0 0.8 to (VIN×0.8) T.B.D. (QFN) 0.2 to 1.0 0.7 to 5.0 VQFN032V5050 0.5 (VIN×0.125) to (VIN×0.7) (VIN×0.125) ≥ 0.8V HTSOP-J8 BD9C601EFJ Output current (A) VOUT (V) (VIN×0.075) to (VIN×0.7) (VIN×0.075) ≥ 0.8V 0.8 to (VIN×0.5) (VIN×0.5) ≤ 5.5V 6.0 ◎ 20V ○ 2.9V BD91364BMUU ○ BD95861MUV 20V PGD, Adj.SS , Remote sense BD9B500MUV PGD , Adj.SS ◎ BD95514MUV 30V BD9C401EFJ ▲ 0.5 20V PGD BD9C501EFJ 5.0 SW Freq. (MHz) 24V BD9F800MUX ◎ ○ PGD – Power good Adj.SS – Adjustable soft start ▲ - Non-synchronous rectification 20V BD9327EFJ / -LB 4.75V 4.0 PGD, Adj.SS 20V Adj.SS ◎ BD95841MUV PGD ○ BD9B400MUV PGD , Adj.SS HTSOP-J8 VQFN024V4040 0.38 0.9 to (VIN×0.9) HTSOP-J8 0.5 to 0.8 0.8 to (VIN×0.5) (VIN×0.5) ≤ 5.5V VQFN016V3030 1.0 / 2.0 0.8 to (VIN×0.8) VQFN016V3030 VQFN016V3030 BD9A400MUV PGD, Adj.SS 1.0 0.8 to (VIN×0.7) BD91361MUV 2bit VID 1.0 0.8 to 3.3 *1 VQFN020V4040 1.0 *1 VQFN020V4040 BD9137MUV 2.3 2.5 2.7 3.0 3.5 4.0 4.5 5.5 6.0 7.0 7.5 14 15 18 28 32 42 56 76 0.8 to 3.3 Input voltage (V) *1 Limitations apply according to input/output voltage 21 DC/DC Converters Selection Guide www.rohm.com Lineup of Single Output Buck Converters (Integrated Switch FET) (Continued from the previous page) Unless otherwise specified: - Current mode control - Soft start - Synchronous rectification - Enable ○ - On-time control ◎ - H3RegTM control - PWM mode - Light-load efficiency - Maximum rating 5V 3.3V PGD – Power good Adj.SS – Adjustable soft start ▲ - Non-synchronous rectification 12V BD9G341AEFJ / -LB BD9E303EFJ-LB 36V BD9E302EFJ BD9D320EFJ ○ BD9D321EFJ ◎ BD95831MUV Output current (A) ◎ 0.55 20V Adj.SS 0.7 20V Adj.SS 0.7 0.5 to 0.8 30V BD9326EFJ / -LB ▲ 3.0 40V 0.3 PGOOD BD9C301FJ / -LB 4.75V 80V 0.05 to 0.75 30V BD95513MUV ▲ VOUT (V) Package 24V ▲ ○ SW Freq. (MHz) PGD, ASS 1.0 to (VIN×0.7) HTSOP-J8 (VIN×0.06) to (VIN×0.8) (VIN×0.06) ≥ 1.0V (VIN×0.143) to (VIN×0.7) (VIN×0.143) ≥ 1.0V 0.765 to 7.0 (VIN×0.07) to (VIN×0.65) 0.765 to 7.0 (VIN×0.07) to (VIN×0.65) 0.8 to (VIN×0.5) (VIN×0.5) ≤ 5.5V VQFN016V3030 HTSOP-J8 HTSOP-J8 HTSOP-J8 HTSOP-J8 0.2 to 1.0 0.7 to 5.0 VQFN032V5050 20V 0.5 (VIN×0.125) to (VIN×0.7) (VIN×0.125) ≥ 0.8V SOP-J8 20V Adj.SS 0.38 0.9 to (VIN×0.9) HTSOP-J8 0.75 1.0 to (VIN×0.7) HTSOP-J8 1.0 3.3 VQFN020V4040 BD9859EFJ BD9134MUV ○ BD9B301MUV-LB PGD, Adj.SS 1.0 / 2.0 0.8 to (VIN×0.8) VQFN016V3030 ○ BD9B300MUV PGD, Adj.SS 1.0 / 2.0 0.8 to (VIN×0.8) VQFN016V3030 BD9A301MUV-LB PGD, Adj.SS 1.0 0.8 to (VIN×0.7) VQFN016V3030 BD9A300MUV PGD, Adj.SS 1.0 0.8 to (VIN×0.7) VQFN016V3030 BD9139MUV 1.0 0.8 to 3.3 BD8963EFJ 1.0 1.0 to 2.5 *1 BD8962MUV 1.0 0.8 to 2.5 *1 VQFN020V4040 BD9132MUV 1.0 0.8 to 3.3 *1 VQFN020V4040 2.5 2.3 2.5 2.7 3.0 3.5 4.0 4.5 5.5 6.0 7.0 7.5 *1 VQFN016V3030 HTSOP-J8 BD9E301EFJ-LB 36V 40V 0.57 (VIN×0.0855) to (VIN×0.7) (VIN×0.0855) ≥ 1.0V HTSOP-J8 BD9E300EFJ-LB 36V 40V 1.0 (VIN×0.15) to (VIN×0.7) (VIN×0.15) ≥ 1.0V HTSOP-J8 14 15 18 28 32 42 56 76 Input voltage (V) *1 Limitations apply according to input/output voltage 22 DC/DC Converters Selection Guide www.rohm.com Lineup of Single Output Buck Converters (Integrated Switch FET) (Continued) Unless otherwise specified: - Current mode control - Soft start - Synchronous rectification - Enable ○ - On-time control ◎ - H3RegTM control - PWM mode - Light-load efficiency 3.3V - Maximum rating 5V ▲ PGD – Power good Adj.SS – Adjustable soft start ▲ - Non-synchronous rectification 12V 0.9 to (VIN×0.9) SOP-J8 0.5 VQFN020V4040 0.5 to 0.8 2.5 to 6.0 (Vccmin=VOUT+1.3V) 0.8 to (VIN×0.5) (VIN×0.5) ≤ 5.5V BD8961NV 1.0 3.3 SON008V5060 BD9111NV 1.0 3.3 SON008V5060 13.2V BD9110NV Output current (A) VQFN016V3030 1.0 1.0 to 2.5 SON008V5060 1.0 / 2.0 0.8 to (VIN×0.8) VQFN016V3030 1.0 1.0 to 2.5 *1 HTSOP-J8 BD8960NV 1.0 1.0 to 2.5 *1 SON008V5060 BD9130EFJ/NV 1.0 1.0 to 2.5 *1 HTSOP-J8 SON008V5060 1.23 VSON008X2030 BD9B200MUV PGD BD89630EFJ 1.5 Package 0.38 20V ◎ BD95821MUV PGD ○ VOUT (V) 24V BD9325FJ / -LB 4.75V BD9141MUV 2.0 SW Freq. (MHz) ○ BU90023NUX 1.0 ○ BU90028NUX 1.0 1.175 VSON008X2030 0.6 (VIN×0.06) to (VIN×0.7) (VIN×0.06) ≥ 1.0V VSON008X2030 1.0 1.0 to 1.8 MSOP8 ▲ 30V Adj.SS BD9E151NUX BD8964FVM 1.2 BD9107FVM BD9123MUV 3bitVID BD9E100FJ-LB BD9E101FJ-LB BD9E102FJ ▲ 1.0 BD9227F BD8313HFN BD9B100MUV 26V 20V 1.0 1.0 to 1.8 MSON8 1.0 0.85 to 1.2 VQFN016V3030 36V 40V 1.0 36V 40V 0.57 30V 0.57 1.0 100%Duty 100%Duty PGD (VIN×0.15) to (VIN×0.7) (VIN×0.15) ≥ 1.0V (VIN×0.0855) to (VIN×0.7) (VIN×0.0855) ≥ 1.0V (VIN×0.143) to (VIN×0.7) (VIN×0.143) ≥ 1.0V (VIN×0.252) to VIN (VIN×0.252) ≥ 1.0V SOP-J8 SOP-J8 SOP-J8 SOP8 1.0 1.2 to 12 HSON8 1.0 / 2.0 0.8 to (VIN×0.8) VQFN016V3030 BD9A101MUV-LB PGD, Adj.SS 1.0 0.8 to (VIN×0.7) VQFN016V3030 BD9A100MUV PGD, Adj.SS 1.0 0.8 to (VIN×0.7) VQFN016V3030 2.3 2.5 2.7 3.0 3.5 4.0 4.5 5.5 6.0 7.0 7.5 14 15 18 28 32 42 56 76 Input voltage (V) *1 Limitations apply according to input/output voltage 23 DC/DC Converters Selection Guide www.rohm.com Lineup of Single Output Buck Converters (Integrated Switch FET) (Continued) Unless otherwise specified: - Current mode control - Soft start - Synchronous rectification - Enable - PWM mode - Light-load efficiency ○ - On-time control ◎ - H3RegTM control 3.3V Output current(A) 1.0 5V - Maximum rating PGD – Power good Adj.SS – Adjustable soft start ▲ - Non-synchronous rectification 12V VOUT (V) Package 24V ○ BU90008GWZ 3.6 1.0 UCSP35L1 ○ BU90003GWZ 4.0 1.2 UCSP35L1 ○ BU90007GWZ 4.0 1.25 UCSP35L1 ○ BU90009GWZ ○ BU90004GWZ / BU90054GWZ ○ BU90104GWZ ○ BU90090GWZ ○ BU90005GWZ ○ BU90006GWZ 4.2 1.3 UCSP35L1 Maximum output capacity 10μF 5.4 1.8 UCSP35L1/UCSP30L1 Maximum output capacity 100μF 5.4 1.8 UCSP35L1 5.4 1.83 UCSP35L1 100%Duty 6.0 2.5 UCSP35L1 100%Duty 6.0 3.0 UCSP35L1 6.0 3.3 UCSP35L1 BD8967FVM 1.0 3.3 MSOP8 BD9104FVM 1.0 3.3 MSOP8 1.5 1.2 to 12 HSON8 ○ BU90002GWZ BD8312HFN 100%Duty BD9109FVM / -LB 1.0 3.3 MSOP8 BD9102FVM 1.0 1.24 MSOP8 BD8966FVM 1.0 1.0 to 2.5 MSON8 BD9106FVM / -LB 1.0 1.0 to 2.5 MSON8 1.0 1.2 MSOP8 1.0 1.0 to 1.5 HSON8 1.0 1.0 to 3.3 MSON8 1.5 (VIN×0.15) to (VIN×0.7) (VIN×0.15) ≥ 1.0V SSOP6 1.0 1.0 to 2.0 VCSP50L2 0.8 BD9103FVM BD9120HFN 0.6 SW Freq. (MHz) BD9161FVM / -LB 100%Duty ▲ 0.5 0.3 BD9G101G 45V BD9122GUL 2.3 2.5 2.7 3.0 3.5 4.0 4.5 5.5 6.0 7.0 7.5 14 15 18 28 32 42 56 76 Input voltage (V) 24 DC/DC Converters Selection Guide www.rohm.com Lineup of Dual Output Buck Converters (Integrated Switch FET) Unless otherwise specified: - Current mode control - Soft start - Synchronous rectification - Enable ◎ - H3RegTM control - PWM mode - Light-load efficiency PGD – Power good - Maximum rating 3.3V SW Freq. (MHz) 5V 12V HTSOP-J8 0.4 to 0.8 Ch1: 0.8 to 5.5 Ch2: 0.8 to 5.5 VQFN032V5050 Ch1: 1.5A Ch2: 1.5A 1.5 Ch1: 3.3 Ch2: 0.8 to 2.5 VQFN020V4040 Ch1: 1.5A Ch2: 1.5A 1.0 Ch1: 3.3 Ch2: 0.8 to 2.5 VQFN020V4040 1.0 Ch1: 1.8 Ch2: 1.2 VQFN020V4040 1.65 Ch1: 2.55 Ch2: 1.8 VQFN016V3030 Output current (A) 8V BD93291EFJ 26V Ch1: 3.0A ◎ BD95830MUV Ch2: 3.0A 1.5 BD9152MUV 0.8 0.4 3.0A 30V Ch1: Ch2: 2.0A Ch1: 5.0 Ch2: 0.8 to 4.0 3.0 4.75V 2.8V BD9151MUV 2.3 2.5 2.7 3.0 3.5 4.0 Ch1: 0.4A Ch2: 0.8A PGD, Voltage detector, High-side controller BD91501MUV 2.55V 100% duty 4.5 5.5 Package 0.3 to 0.6 ◎ BD9150MUV VOUT (V) 24V 6.0 Ch1: 0.4A Ch2: 0.3A 7.0 7.5 14 15 18 28 32 42 56 Input voltage (V) 76 Lineup of Buck Controllers (External Switch FET) Unless otherwise specified: - Current mode control - Soft start - Synchronous rectification - Enable ◎ - H3RegTM control - PWM mode - Light-load efficiency 3.3V Controller (External Switch) - Maximum rating 5V 12V ■(0.05-0.5MHz) Dual PGD – Power good Adj.SS – Adjustable soft start ▲ - Non-synchronous rectification ■ - External synchronization SW Freq. (MHz) VOUT (V) Package 24V BD9611MUV 10V 60V Adj.SS 0.05 to 0.5 1.0 to (VIN×0.8) VQFN020V4040 SSOP-B20 ▲ 3.6V BD9848FV 35V 36V Adj.SS 0.1 to 1.5 Ch1: 1.0 to VIN *1 Ch2: 1.0 to VIN *1 ▲ 3.6V BD9845FV 35V 36V Adj.SS 0.1 to 1.5 1.0 to VIN *1 SSOP-B14 0.01 to 0.3 1.25 to VIN *1 SOP-J8 1.25 to VIN *1 MSOP8 ▲ BD63536FJ ▲ BD9305AFVM 4.2V 4.0 No Enable 20V 0.1 to 0.8 Dual ◎ BD9528AMUV 30V PGD, Adj.SS 0.2 to 0.5 Dual ◎ BD95602MUV-LB 30V PGD, Adj.SS 0.15 to 0.5 Ch1: 1.0 to 5.5 Ch2: 1.0. to 5.5 Ch1: 1.0 to 5.5 Ch2: 1.0. to 5.5 0.2 to 0.5 0.75 to 2.0 ◎ 2.3 2.5 2.7 3.0 3.5 32V 30V BD95601MUV-LB 4.5 5.5 6.0 7.0 7.5 14 28V 25V 15 18 28 32 PGD, Adj.SS 42 56 76 VQFN032V5050 VQFN032V5050 VQFN020V4040 Input voltage (V) *1 Limitations apply according to input/output voltage 25 DC/DC Converters Selection Guide www.rohm.com Lineup of Boost/Buck-boost/SEPIC and Inverting Converters and Controllers Switch allowable current (mA) 1400 BA9741F / BA9741FS BA9744FV Dual ▲ 3.6V BA9743AFV Dual ▲ ▲ ✔ - - ✔ Voltage 10 to 800 2.5 to *1 SOP16 SSOP-A16 35V 36V Adj.SS ✔ - - ✔ Voltage 10 to 800 1.222 to *1 SSOP-B16 35V 36V Adj.SS 10 to 800 2.505 to *1 SSOP-B16 ▲ BD8158FVM ✔ - - ✔ Voltage ✔ Voltage 10 to 3000 1.0 to *1 HTSSOP-B20 100 to 800 VIN to (VIN/0.3) MSOP8 - BD9306AFVM 20V Soft Start ✔ - - - Voltage - ✔ - - Voltage 200 to 1000 1.8 to 12 VQFN016V3030 Soft Start ✔ - - - Voltage 1200 4.0 to 12 VSON010V3030 Soft Start ✔ - - - Voltage 1200 4.0 to 11 VSON010V3030 Soft Start ✔ ✔ - - Voltage 300 to 2000 1.8 to 5.2 VQFN016V3030 Adj.SS ✔ ✔ ✔ - Current 600/1200 VIN to 14 MSOP8 ✔ ✔ ✔ - Current 600/1200 VIN to 14 MSOP8 15V Soft Start Adj.SS Dual ▲ BD8316GWL Soft Start ✔ - - ✔ Current 1600 Ch1: -9.0 to -1.0 Ch2: Vin to +18 UCSP50L1 Dual ▲ BD8317GWL Soft Start ✔ - - ✔ Current 800 Ch1: -9.0 to -1.0 Ch2: Vin to +18 UCSP50L1 BU33DV7NUX Soft Start , Input pass through ✔ - - - Current 600 3.3 VSON010V3030 BU34DV7NUX Soft Start , Input pass through ✔ - - - Current 600 3.4 VSON010V3030 ✔ - - - Current 100 3.3 SSOP5 1000 300 10 Package - BD8311NUV BD8152FVM VOUT (V) ✔ 4.2V BD8306MUV SW Freq. (kHz) 20V Adj.SS BD8314NUV ▲ Control mode BD9851EFV BD8303MUV ▲ 36V Adj.SS 8.8V Inversing 5.4V Dual ▲ ▲ SEPIC 4.4V Dual ▲ 3.6V 2000 35V 2cell Li-Ion 2.7V 2500 Buck-boost Controller (External Switch) 1cell Li-Ion Boost ▲ - Non-synchronous rectification PGD – Power good Adj.SS – Adjustable soft start - Maximum rating - PWM mode - Light-load efficiency BU33DV5G 1.75 1.8 2.1 2.5 2.7 3.0 3.5 4.0 4.5 5.5 6.0 11 12 14 18 28 36 42 Input voltage (V) *1 Limitations apply according to input/output voltage 26 DC/DC Converters Selection Guide www.rohm.com Buck Converters (Integrated Switch FET) 3.3 V/5 V Power Rail Input Selection Guide Features Input Voltage Range (V) Output Voltage (V) Switching Frequency (MHz) Control Mode BD9122GUL 7 0.3 2.5~5.5 1.0~2.0 1 Current - - - ✔ Latch BD9161FVM BD9161FVM-LB 7 0.6 2.5~4.5 1.0~3.3 1 Current - - - ✔ ✔ Latch BU9006GUZ 7 0.75 2.5~4.5 1.0~VIN 2 Current - - - ✔ - BD9109FVM BD9109FVM-LB 7 0.8 4.5~5.5 3.3 1 Current - - - ✔ ✔ Latch BD9102FVM 7 0.8 4.0~5.5 1.24 1 Current - - - ✔ ✔ BD8966FVM 7 0.8 4.0~5.5 1.0~2.5 1 Current - - - ✔ BD9106FVM BD9106FVM-LB 7 0.8 4.0~5.5 1.0~2.5 1 Current - - - BD9120HFN 7 0.8 2.7~4.5 1.0~1.5 1 Current - - BD8967FVM 7 0.8 4.5~5.5 3.3 1 Current - BD9104FVM 7 0.8 4.5~5.5 3.3 1 Current New BU90008GWZ 7 1 2.3~5.5 1.0 3.6 BU90003GWZ 7 1 2.3~5.5 1.2 BU90007GWZ 7 1 2.3~5.5 New BU90009GWZ 7 1 BU90004GWZ 7 BU90054GWZ Operating Temperature (℃) Package (mm) ✔ Latch -25~+85 VCSP50L2 (2.5×1.1) Latch -25~+85 MSOP8 -35~+85 VCSP35L1 (1.6×1.6) Latch -25~+85 MSOP8 Latch Latch -25~+85 MSOP8 - Latch Latch -25~+85 MSOP8 ✔ ✔ Latch Latch -25~+85 MSOP8 - ✔ ✔ Latch Latch -25~+85 HSON8 - - ✔ - Latch Latch -25~+85 MSOP8 - - - ✔ ✔ Latch Latch -25~+85 MSOP8 On-time - - - ✔ ✔ Recove Recove ry ry -40~+85 UCSP35L1 (1.3×0.9×0.4) 4 On-time - - - ✔ ✔ Recove Recove ry ry -40~+85 UCSP35L1 (1.3×0.9×0.4) 1.25 4 On-time - - - ✔ ✔ Recove Recove ry ry -40~+85 UCSP35L1 (1.3×0.9×0.4) 2.3~5.5 1.3 4.2 On-time - - - ✔ ✔ Recove Recove ry ry -40~+85 UCSP35L1 (1.3×0.9×0.4) 1 2.3~5.5 1.8 5.4 On-time - - - ✔ ✔ Recove Recove Maximum output capacitance ry ry 10μF -40~+85 UCSP35L1 (1.3×0.9×0.4) 7 1 2.3~5.5 1.8 5.4 On-time - - - ✔ ✔ Recove Recove Maximum output capacitance ry ry 10μF -40~+85 UCSP30L1 (1.3×0.9×0.33) New BU90104GWZ 7 1 2.3~5.5 1.8 5.4 On-time - - - ✔ ✔ Recove Recove Maximum output capacitance ry ry 100μF -40~+85 UCSP35L1 (1.3×0.9×0.4) New BU90090GWZ 7 1 2.3~5.5 1.83 5.4 On-time - - - ✔ ✔ Recove Recove ry ry -40~+85 UCSP35L1 (1.3×0.9×0.4) Part No. Power Good Thermal Protection Output Current (A) Externally Synchronizable Adjustable Soft Start Synchronous Rectifier Light-Load Efficiency Over-Current Protection Input Voltage Maximum Rating (V) Description Recove Recove Incorporates in/output bias switch, ry ry 100% Duty 27 DC/DC Converters Selection Guide www.rohm.com Buck Converters (Integrated Switch FET) 3.3 V/5 V Power Rail Input Selection Guide (Continued) Output Current (A) Input Voltage Range (V) Output Voltage (V) Switching Frequency (MHz) Control Mode BU90005GWZ 7 1 2.3~5.5 2.5 6 On-time - - - ✔ ✔ BU90006GWZ 7 1 2.3~5.5 3.0 6 On-time - - - ✔ BU90002GWZ 7 1 4.0~5.5 3.3 6 On-time - - - BD9A100MUV BD9A101MUV-LB 7 1 2.7~5.5 0.8~(VIN×0.7) 1 Current ✔ - BD9B100MUV 7 1 2.7~5.5 0.8~(VIN×0.8) 1/2 On-time ✔ BD8964FVM 7 1.2 4.0~5.5 1.0~1.8 1 Current BD9107FVM 7 1.2 4.0~5.5 1.0~1.8 1 BD9123MUV 7 1.2 2.7~5.5 0.85~1.2 BU90023NUX 7 1.5 2.3~5.5 BU90028NUX 7 1.5 BD8961NV 7 BD9111NV Thermal Protection Features Input Voltage Maximum Rating (V) Recove Recove ry ry -40~+85 UCSP35L1 (1.3×0.9×0.4) ✔ Recove Recove ry ry -40~+85 UCSP35L1 (1.3×0.9×0.4) ✔ ✔ Recove Recove ry ry -40~+85 UCSP35L1 (1.3×0.9×0.4) ✔ ✔ ✔ Recove Recove ry ry -40~+85 -40~+125 VQFN016V3030 - ✔ ✔ Deep Recove Recove ry ry -40~+85 VQFN016V3030 - - - ✔ - Latch Latch -25~+85 MSOP8 Current - - - ✔ ✔ Latch Latch -25~+85 MSOP8 1 Current ✔ - - ✔ ✔ Latch Latch -40~+95 VQFN016V3030 1.23 1 On-time - - - ✔ ✔ Recove Recove ry ry -40~+85 VSON008X2030 2.3~5.5 1.175 1 On-time - - - ✔ ✔ Recove Recove ry ry -40~+85 VSON008X2030 2 4.5~5.5 3.3 1 Current - - - ✔ - Latch Latch -25~+105 SON008V5060 7 2 4.5~5.5 3.3 1 Current - - - ✔ ✔ Latch Latch -25~+105 SON008V5060 BD9110NV 7 2 4.5~5.5 1.0~2.5 1 Current - - - ✔ ✔ Latch Latch -25~+105 SON008V5060 BD89630EFJ 7 2 2.7~5.5 1.0~2.5 *1 1 Current - - - ✔ - Latch Latch -25~+85 HTSOP-J8 BD8960NV 7 2 2.7~5.5 1.0~2.5 *1 1 Current - - - ✔ - Latch Latch -25~+105 SON008V5060 BD9130EFJ 7 2 2.7~5.5 1.0~2.5 *1 1 Current - - - ✔ ✔ Latch Latch -25~+105 HTSOP-J8 BD9130NV 7 2 2.7~5.5 1.0~2.5 *1 1 Current - - - ✔ ✔ Latch Latch -25~+105 SON008V5060 7 2 2.7~5.5 0.8~(VIN×0.8) 1/2 On-time ✔ - ✔ ✔ Deep -40~+85 VQFN016V3030 New BD9B200MUV *1 Restrictions depend on input/output voltage conditions. DC/DC Converters Selection Guide www.rohm.com Externally Synchronizable Adjustable Soft Start Synchronous Rectifier Light-Load Efficiency Over-Current Protection Package (mm) Power Good Operating Temperature (℃) Part No. Recove Recove ry ry Description Output voltage setting by 3-bit parallel control 28 Buck Converters (Integrated Switch FET) 3.3 V/5 V Power Rail Input Selection Guide (Continued) Features Input Voltage Range (V) Output Voltage (V) Switching Frequency (MHz) Control Mode BD8962MUV 7 3 2.7~5.5 0.8~2.5 *1 1 Current - - - - Latch BD9132MUV 7 3 2.7~5.5 0.8~3.3 *1 1 Current - - - ✔ ✔ BD8963EFJ 7 3 2.7~5.5 1.0~2.5 *1 1 Current - - - ✔ BD9134MUV 7 3 4.5~5.5 3.3 1 Current - - - BD9139MUV 7 3 2.7~5.5 0.8~3.3 *1 1 Current - - BD9A300MUV BD9A301MUV-LB 7 3 2.7~5.5 0.8~(VIN×0.7) 1 Current ✔ BD9B300MUV New BD9B301MUV-LB 7 3 2.7~5.5 0.8~(VIN×0.8) 1/2 On-time BD9137MUV 7 4 2.7~5.5 0.8~3.3 *1 1 BD91361MUV 7 4 2.7~5.5 0.8~3.3 *1 BD9A400MUV 7 4 2.7~5.5 New BD9B400MUV 7 4 New BD91364BMUU 7 New BD9B500MUV Operating Temperature (℃) Package (mm) ✔ Latch -40~+105 VQFN020V4040 Latch Latch -40~+105 VQFN020V4040 - Latch Latch -25~+85 HTSOP-J8 ✔ ✔ Latch Latch -40~+105 VQFN020V4040 - ✔ ✔ Latch Latch -40~+105 VQFN016V3030 - ✔ ✔ ✔ Recove Recove ry ry -40~+85 -40~+125 VQFN016V3030 ✔ - ✔ ✔ Deep Recove Recove ry ry -40~+85 -40~+125 VQFN016V3030 Current - - - ✔ ✔ Recove Recove ry ry -40~+105 VQFN020V4040 1 Current - - - ✔ ✔ -40~+105 VQFN020V4040 0.8~(VIN×0.7) 1 Current ✔ - ✔ ✔ ✔ Recove Recove ry ry -40~+85 VQFN016V3030 2.7~5.5 0.8~(VIN×0.8) 1/2 On-time ✔ - ✔ ✔ Deep Recove Recove ry ry -40~+85 VQFN016V3030 5 2.9~5.5 0.8~(VIN×0.8) 1.7 On-time ✔ - ✔ ✔ ✔ Recove ry -40~+105 VQFN20U4040M 7 5 2.7~5.5 0.8~(VIN×0.8) 1/2 On-time ✔ - ✔ ✔ Deep Recove Recove ry ry -40~+85 VQFN016V3030 BD9A600MUV 7 6 2.7~5.5 0.8~(VIN×0.7) 1 Current ✔ - ✔ ✔ ✔ Recove Recove ry ry -40~+85 VQFN016V3030 New BD9B600MUV 7 6 2.7~5.5 0.8~(VIN×0.8) 1/2 On-time ✔ - ✔ ✔ Deep Recove Recove ry ry -40~+85 VQFN016V3030 Part No. Power Good Thermal Protection Output Current (A) Externally Synchronizable Adjustable Soft Start Synchronous Rectifier Light-Load Efficiency Over-Current Protection Input Voltage Maximum Rating (V) Latch Latch Latch Description Output voltage setting by 2-bit parallel control *1 Restrictions depend on input/output voltage conditions. 29 DC/DC Converters Selection Guide www.rohm.com Buck Converters (Integrated Switch FET) 12 V Power Rail Input Selection Guide Features Input Voltage Range (V) Output Voltage (V) Switching Frequency (MHz) Control Mode BD8312HFN 15 0.8 3.5~14 1.2~12 1.5 Current - - - ✔ - - Recove ry - BD8313HFN 15 1 3.5~14 1.2~12 1 Current - - - ✔ - - Recove ry 22 1 6.0~20 (VIN×0.252)~VIN (VIN×0.252)≧ 1.0 1 Current - - - - - Recove Recove ry ry BD9141MUV 15 2 4.5~13.2 2.5~6.0 *1 0.5 Current - - - ✔ ✔ Latch Latch BD95821MUV 15.2 2 7.5~15 0.8~(VIN×0.5) (VIN×0.5)≦5.5 0.5~0.8 H3 Reg ✔ - - ✔ - Latch Recove ry BD9325FJ BD9325FJ-LB 20 2 4.75~18 0.9~(VIN×0.9) 0.38 Current - - ✔ - - 4.5~18 (VIN×0.125)~(VIN×0.7) (VIN×0.125)≧ 0.8 0.5 Current - - - ✔ - 7.5~15 0.8~(VIN×0.5) (VIN×0.5)≦5.5 0.5~0.8 H3 Reg ✔ - - ✔ - 0.7 On-time - - ✔ ✔ New BD9227F BD9C301FJ BD9C301FJ-LB BD95831MUV 20 15.2 3 3 Package 100% Duty -25~+85 HSON8 - 100% Duty -40~+85 HSON8 - 100% Duty -40~+85 SOP8 - -40~+105 VQFN020V4040 ✔ -20~+100 VQFN016V3030 Recove Recove ry ry - -40~+85 SOP-J8 Latch Recove ry - -40~+85 -40~+125 SOP-J8 Latch Recove ry Over-Voltage Protection Operating Temperature (℃) Externally Synchronizable Adjustable Soft Start Synchronous Rectifier Light-Load Efficiency Over-Current Protection Part No. Thermal Protection Output Current (A) Power Good Input Voltage Maximum Rating (V) Description ✔ -20~+100 VQFN016V3030 - Recove Recove ry ry - -40~+85 HTSOP-J8 BD9D320EFJ 20 3 4.5~18 0.765~7.0 (VIN×0.07)~(VIN×0.65) BD9D321EFJ 20 3 4.5~18 0.765~7.0 (VIN×0.07)~(VIN×0.65) 0.7 On-time - - ✔ ✔ ✔ Recove Recove ry ry - -40~+85 HTSOP-J8 BD9859EFJ 15 3 5.0~14 1.0~(VIN×0.7) 0.75 Current - - - - - Recove Recove ry ry - -40~+85 HTSOP-J8 BD9326EFJ BD9326EFJ-LB 20 3 4.75~18 0.9~(VIN×0.9) 0.38 Current - - ✔ - - Recove Recove ry ry - -40~+85 HTSOP-J8 BD9C401EFJ 20 4 4.5~18 (VIN×0.125)~(VIN×0.7) (VIN×0.125)≧ 0.8 0.5 Current - - - ✔ - Latch Recove ry - -40~+85 HTSOP-J8 BD95841MUV 15.2 4 7.5~15 0.8~(VIN×0.5) (VIN×0.5)≦5.5 0.5~0.8 H3 Reg ✔ - - ✔ - Latch Recove ry ✔ -20~+100 VQFN016V3030 BD9327EFJ BD9327EFJ-LB 20 4 4.75~18 0.9~(VIN×0.9) 0.38 Current - - ✔ - - Recove Recove ry ry - -40~+85 HTSOP-J8 BD9C501EFJ 20 5 4.5~18 (VIN×0.075)~(VIN×0.7) (VIN×0.075)≧ 0.8 0.5 Current - - - ✔ - Latch Recove ry - -40~+85 HTSOP-J8 BD95861MUV 20 6 7.5~18 0.8~(VIN×0.5) (VIN×0.5)≦5.5 0.35~0.8 H3 Reg ✔ - - ✔ - Latch Recove ry ✔ -20~+100 VQFN024V4040 BD9C601EFJ 20 6 4.5~18 (VIN×0.075)~(VIN×0.7) (VIN×0.075)≧ 0.8 0.5 Current - - - ✔ - Latch Recove ry - -40~+85 HTSOP-J8 BD95500MUV 24 6 3.0~20 0.7~5.0 0.2~1.0 H3 Reg ✔ - ✔ ✔ ✔ Latch Recove ry ✔ -10~+100 VQFN040V6060 Output Discharge *1 Restrictions depend on input/output voltage conditions. 30 DC/DC Converters Selection Guide www.rohm.com Buck Converters (Integrated Switch FET) 24 V Power Rail Input Selection Guide Features Input Voltage Range (V) Output Voltage (V) Switching Frequency (MHz) Control Mode BD9G101G 45 0.5 6.0~42 (VIN×0.15)~(VIN×0.7) (VIN×0.15)≧ 1.0 1.5 Current - - - - - Recove Recove ry ry BD9E100FJ-LB 40 1 7.0~36 (VIN×0.15)~(VIN×0.7) (VIN×0.15)≧ 1.0 1 Current - - - ✔ - 0.57 Current - - - ✔ Package - -40~+105 SSOP6 Recove Recove ry ry ✔ -40~+150 SOP-J8 - Recove Recove ry ry ✔ -40~+150 SOP-J8 Over-Voltage Protection Operating Temperature (℃) Externally Synchronizable Adjustable Soft Start Synchronous Rectifier Light-Load Efficiency Over-Current Protection Part No. Thermal Protection Output Current (A) Power Good Input Voltage Maximum Rating (V) Description BD9E101FJ-LB 40 1 7.0~36 (VIN×0.0855)~(VIN×0.7) (VIN×0.0855)≧ 1.0 BD9E102FJ 30 1 7.0~26 (VIN×0.143)~(VIN×0.7) (VIN×0.143)≧ 1.0 0.57 Current - - - ✔ ✔ Recove Recove ry ry ✔ -40~+85 SOP-J8 BD9E151NUX 30 1.2 6.0~28 (VIN×0.06)~(VIN×0.7) *1 (VIN×0.06)≧ 1.0 0.6 Current - - ✔ - - Recove Recove ry ry ✔ -40~+85 VSON008X2030 BD9701CP-V5 36 1.5 8.0~35 1.0~(VIN-3.0) 0.1 Voltage - - - - - BD9701FP 36 1.5 8.0~35 1.0~(VIN-3.0) 0.1 Voltage - - - - - BD9703CP-V5 36 1.5 8.0~35 1.0~(VIN-3.0) 0.3 Voltage - - - - - BD9703FP 36 1.5 8.0~35 1.0~(VIN-3.0) 0.3 Voltage - - - - - BD9870FPS 36 1.5 8.0~35 1.0~(0.8×(VIN-IO×RON) 0.9 Voltage - - - - - BD9873CP-V5 36 1.5 8.0~35 1.0~(0.8×(VIN-IO×RON) 0.11 Voltage - - - - - BD9778HFP 36 2 7.0~35 (VIN×0.06)~VIN (VIN×0.06)≧ 1.0 0.05~0.5 Current - - - - - BD9E300EFJ-LB 40 2.5 7.0~36 (VIN×0.15)~(VIN×0.7) (VIN×0.15)≧ 1.0 1 Current - - - ✔ 0.57 Current - - - BD9E301EFJ-LB New BD9E302EFJ BD9E303EFJ-LB Recove ry Recove ry Recove ry Recove ry Recove ry Recove ry Recove ry Recove ry Recove ry Recove ry Recove ry Recove ry - 100% Duty -40~+85 TO220CP-V5 - 100% Duty -40~+85 TO252-5 - 100% Duty -40~+85 TO220CP-V5 - 100% Duty -40~+85 TO252-5 - 100% Duty -40~+85 TO252S-5 - 100% Duty -40~+85 TO220CP-V5 Recove Recove ry ry - 100% Duty -40~+125 HRP7 - Recove Recove ry ry ✔ -40~+150 HTSOP-J8 ✔ - Recove Recove ry ry ✔ -40~+150 HTSOP-J8 40 2.5 7.0~36 (VIN×0.0855)~(VIN×0.7) (VIN×0.0855)≧ 1.0 30 3 7.0~28 (VIN×0.143)~(VIN×0.7) (VIN×0.143)≧ 1.0 0.55 Current - - - ✔ ✔ Recove Recove ry ry ✔ -40~+85 HTSOP-J8 40 3 7.0~36 (VIN×0.06)~(VIN×0.8) (VIN×0.06)≧ 1.0 0.3 Current - - - ✔ - Recove Recove ry ry ✔ -40~+150 HTSOP-J8 - -40~+85 TO220CP-V5 - -40~+85 TO220CP-V5 BD9702CP-V5 36 3 8.0~35 1.0~(VIN-3.0) 0.11 Voltage - - - - - Recove Recove ry ry BD9874CP-V5 36 3 8.0~35 1.0~(0.8×(VIN-IO×RON) 0.11 Voltage - - - - - Recove Recove ry ry BD95513MUV 30 3 4.5~28 0.7~5.0 0.2~1.0 H3 Reg ✔ - ✔ ✔ ✔ Latch Recove ry ✔ Output Discharge -10~+100 VQFN032V5050 BD95514MUV 30 4 4.5~28 0.7~5.0 0.2~1.0 H3 Reg ✔ - ✔ ✔ ✔ Latch Recove ry ✔ Output Discharge -10~+100 VQFN032V5050 4.5~28 0.765~(VIN×0.7) (VIN×0.7)≦ 13.5 -40~+85 VQFN11X3535M ☆ BD9F800MUX 30 8 ☆ Under Development 0.3 / 0.6 On-time ✔ - - ✔ - Recove Recove ry ry - *1 Restrictions depend on input/output voltage conditions. 31 DC/DC Converters Selection Guide www.rohm.com Buck Converters (Integrated Switch FET) Selection Guide for Maximum 75 V Input BD9G341AEFJ New BD9G341AEFJ-LB Output Voltage (V) Switching Frequency (MHz) Control Mode 80 3 12~76 1.0~VIN *1 0.05~0.75 Current - - - - Over-Voltage Protection Input Voltage Range (V) Thermal Protection Output Current (A) Power Good Part No. Externally Synchronizable Adjustable Soft Start Synchronous Rectifier Light-Load Efficiency Over-Current Protection Features Input Voltage Maximum Rating (V) Recove Recove ry ry - Description ✔ Operating Temperature (℃) Package -40~+85 HTSOP-J8 *1 Restrictions depend on input/output voltage conditions. Dual Output Selection Guide BD91501MUV 2 Output Voltage (V) Switching Frequency (MHz) Control Mode 7 Io1 : 0.4 Io2 : 0.3 2.55~5.5 Vo1 : 2.55 Vo2 : 1.80 1.65 Current 2.8~5.5 Vo1 : 1.8 Vo2 : 1.2 1 Current - - - ✔ ✔ Latch - - - ✔ ✔ Latch Recove ry Over-Voltage Protection Input Voltage Range (V) Externally Synchronizable Adjustable Soft Start Synchronous Rectifier Light-Load Efficiency Over-Current Protection Output Current (A) Power Good Part No. Thermal Protection Features Input Number Voltage of Maximum Channels Rating (V) Description Operating Temperature (℃) Package - 100% Duty -30~+105 VQFN016V3030 Latch - Voltage Detector, High-side gate controller -40~+85 VQFN020V4040 BD9151MUV 2 7 Io1 : 0.4 Io2 : 0.8 BD9150MUV 2 7 Io1 : 1.5 Io2 : 1.5 4.75~5.5 Vo1 : 3.3 Vo2 : 0.8~2.5 1.5 Current - - - ✔ ✔ Latch Latch - -40~+85 VQFN020V4040 BD9152MUV 2 7 Io1 : 1.5 Io2 : 1.5 4.5~5.5 Vo1 : 3.3 Vo2 : 0.8~2.5 1 Current - - - ✔ ✔ Latch Latch - -40~+85 VQFN020V4040 BD93291EFJ 2 30 Io1 : 2.5 Io2 : 1.5 8.0~26 Vo1 : 5.0 Vo2 : 0.8~4.0 1.5~2.5 H3 Reg - - - ✔ ✔ - -40~+85 HTSOP-J8 15.1 Io1 : 3.0 Io2 : 3.0 7.5~15 Vo1 : 0.8~5.5 Vo2 : 0.8~5.5 -20~+100 VQFN032V5050 BD95830MUV 2 0.4~0.8 H3 Reg - - - ✔ - Recove Recove ry ry Recove Latch Latch ry 32 DC/DC Converters Selection Guide www.rohm.com Lineup of Boost/Buck-boost/SEPIC and Inverting Converters (Integrated Switch FET) Boost/Buck-boost/SEPIC and Inverting Converter Selection Guide Switching Frequency (kHz) Control Mode Buck-Boost SEPIC Inverting Soft Start Input Pass through UVLO BU33DV5G 1 10 1.75~4.5 3.3 100 Current ✔ - - - ✔ - - - ✔ Recove ry ✔ SSOP5 BU33DV7NUX 1 300 1.8~5.5 3.3 600 Current ✔ - - - ✔ ✔ ✔ ✔ ✔ Recove ry ✔ VSON010V3030 BU34DV7NUX 1 300 1.8~5.5 3.4 600 Current ✔ - - - ✔ ✔ ✔ ✔ ✔ Recove ry ✔ VSON010V3030 BD8152FVM 1 1400 2.5~5.5 VIN~14 600 / 1200 Current ✔ ✔ ✔ - - - Adj. - ✔ Recove ry ✔ MSOP8 BD8158FVM 1 1400 2.1~4.0 VIN~14 600 / 1200 Current ✔ ✔ ✔ - - - Adj. - ✔ Recove ry ✔ MSOP8 BD8306MUV 1 2000 1.8~5.5 1.8~5.2 300~2000 Voltage ✔ ✔ - - ✔ - ✔ - ✔ Latch ✔ VQFN016V3030 BD8314NUV 1 2500 3.0~12 4.0~12 1200 Voltage ✔ - - - - - ✔ - ✔ Latch ✔ VSON010V3030 BD8311NUV 1 2500 3.5~11 4.0~11 1200 Voltage ✔ - - - - - ✔ - ✔ Latch ✔ VSON010V3030 BD8316GWL 2 1000 2.5~5.5 Vo1 : -9.0~-1.0 Vo2 : VIN ~ 18 1600 Current ✔ - - ✔ - - ✔ - ✔ Latch ✔ UCSP50L1 (1.8×1.5) BD8317GWL 2 1000 2.5~5.5 Vo1 : -9.0~-1.0 Vo2 : VIN ~ 18 800 Current ✔ - - ✔ - - ✔ - ✔ Latch ✔ UCSP50L1 (1.8×1.5) Part No. Thermal Protection Output Voltage (V) Over-Current Protection Input Voltage (V) Synchronous Rectifier Light-Load Efficiency Switch Current Limit (mA) Boost Features Number of Channels Package (mm) Isolated DC/DC Power Supplies Isolated Flyback Converter Selection Guide Input Voltage Range (V) Switching Frequency (kHz) Control Mode Soft Start Light-Load Efficiency UVLO New BD7F100HFN-LB New BD7F100EFJ-LB 1W at VIN 5.0V 5W at VIN 24V 45 1.25 3.0 to 40 400 Adaptive on-time ✔ ✔ ✔ ✔ New BD7F200HFN-LB New BD7F200EFJ-LB 5W at VIN 12V 10W at VIN 24V 45 2.75 8.0 to 40 400 Adaptive on-time ✔ ✔ ✔ ✔ ☆ BD7J100HFN-LB ☆ BD7J100EFJ-LB 5W at VIN 48V 80 1.0 8.0 to 80 400 Adaptive on-time ✔ ✔ ✔ ✔ Part No. Feed back Feed back -40 to +125 HSON8 HTSOP-J8 Feed back Feed back -40 to +125 HSON8 HTSOP-J8 Feed back Feed back -40 to +125 HSON8 HTSOP-J8 33 ☆ Under Development DC/DC Converters Selection Guide Operating Junction Temperature Range (℃) Package Thermal Protection Switch Current Limit (A) Over-Current Protection Output Power (W) Enable Features Input Voltage Maximum Rating (V) www.rohm.com Controllers (External Switch FET) Buck Controller Selection Guide BD9305AFVM 1 20 Output Voltage (V) Switching Frequency (MHz) Control Mode 4.2~18 - 1.25~VIN *1 0.1~0.8 Voltage - - - - - Latch Over-Voltage Protection Supply Voltage (V) Thermal Protection Input Voltage Range (V) Power Good Part No. Externally Synchronizable Adjustable Soft Start Synchronous Rectifier Light-Load Efficiency Over-Current Protection Features Input Number Voltage of Maximum Channels Rating (V) Recove ry Description - Recove Recove Latch Tracking feature ry ry Operating Temperature (℃) Package -40~+85 MSOP8 -10~+85 VQFN020V4040 BD95601MUV-LB 1 28 4.5~25 4.5~5.5 0.75~2.0 0.2~0.5 H3 Reg ✔ - ✔ ✔ ✔ BD63536FJ 1 32 3.0~30 - 1.25~VIN *1 0.01~0.3 Voltage - - - - - Recove Recove Recove ry ry ry -25~+85 SOP-J8 - -40~+85 SSOP-B14 - -40~+105 VQFN020V4040 -20~+100 VQFN032V5050 -20~+85 VQFN032V5050 -40~+105 SSOP-B20 BD9845FV 1 36 3.6~35 - 1.0~VIN *1 0.1~1.5 Voltage - - ✔ - - Recove Recove ry ry BD9611MUV 1 60 10~56 - 1.0~(VIN×0.8) 0.05~0.5 Voltage - ✔ ✔ ✔ - Recove Recove ry ry BD9528AMUV 2 30 5.5~28 - 1.0~5.5 0.2~0.5 H3 Reg ✔ - ✔ ✔ ✔ Latch Recove Recove Output discharge, Latch ry ry 3.3V LDO, 5V LDO BD95602MUV BD95602MUV-LB 2 30 5.5~28 - 1.0~5.5 0.15~0.5 H3 Reg ✔ - ✔ ✔ ✔ BD9848FV 2 36 3.6~35 - 1.0~VIN *1 0.1~1.5 Voltage - - ✔ - - Pre Bias, Adjustable UVLO Recove Recove Output discharge, ry ry 3.3V LDO, 5V LDO Recove Recove ry ry - *1 Restrictions depend on input/output voltage conditions. Boost/Buck-boost Controller Selection Guide Description Operating Temperature (℃) Package (mm) BD8303MUV 1 15 2.7~14 1.8~12 200~1000 Voltage - ✔ - - ✔ - ✔ Latch Recove ry -25~+85 VQFN016V3030 BD9306AFVM 1 20 4.2~18 VIN~(VIN/0.3) 100~800 Voltage ✔ - - - ✔ - - Latch Recove ry -40~+85 MSOP8 BD9851EFV 2 20 4.0~18 1.0~*1 10~3000 Voltage ✔ - ✔ ✔ - ✔ - Latch Recove ry -40~+85 HTSSOP-B20 BA9743AFV 2 36 3.6~35 2.505~*1 10~800 Voltage ✔ - ✔ ✔ - ✔ - Latch Recove Adjustable Dead Time ry -40~+85 SSOP-B16 -40~+85 SSOP-B16 Thermal Protection Enable Control Mode Buck Switching Frequency (kHz) Inverting Output Voltage (V) Buck-Boost Input Voltage (V) Boost Part No. Adjustable Soft Start Synchronous Rectifier Short Circuit Protection Features Input Number Voltage of Maximum Channels Rating (V) BA9744FV 2 36 2.5~35 1.222~*1 10~800 Voltage ✔ - ✔ ✔ - ✔ - Recove Latch Adjustable Dead Time ry BA9741F 2 36 3.6~35 2.5~*1 10~800 Voltage ✔ - ✔ ✔ - ✔ - Latch Recove Adjustable Dead Time ry -40~+85 SOP16 BA9741FS 2 36 3.6~35 2.5~*1 10~800 Voltage ✔ - ✔ ✔ - ✔ - Latch Recove Adjustable Dead Time ry -40~+85 SSOP-A16 *1 Restrictions depend on input/output voltage conditions. 34 DC/DC Converters Selection Guide www.rohm.com Notes 1) The information contained herein is subject to change without notice. 2) Before you use our Products, please contact our sales representative and verify the latest specifications. 3) Although ROHM is continuously working to improve product reliability and quality, semicon- ductors can break down and malfunction due to various factors. Therefore, in order to prevent personal injury or fire arising from failure, please take safety measures such as complying with the derating characteristics, implementing redundant and fire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no responsibility for any damages arising out of the use of our Poducts beyond the rating specified by ROHM. 4) Examples of application circuits, circuit constants and any other information contained herein are provided only to illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. 5) The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM or any other parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of such technical information. 6) The Products are intended for use in general electronic equipment (i.e. AV/OA devices, communi- cation, consumer systems, gaming/entertainment sets) as well as the applications indicated in this document. 7) The Products specified in this document are not designed to be radiation tolerant. 8) For use of our Products in applications requiring a high degree of reliability (as exemplified below), please contact and consult with a ROHM representative : transportation equipment (i.e. cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety equipment, medical systems, servers, solar cells, and power transmission systems. 9) Do not use our Products in applications requiring extremely high reliability, such as aerospace equipment, nuclear power control systems, and submarine repeaters. 10) ROHM shall have no responsibility for any damages or injury arising from non-compliance with the recommended usage conditions and specifications contained herein. 11) ROHM has used reasonable care to ensure the accuracy of the information contained in this document. However, ROHM does not warrants that such information is error-free, and ROHM shall have no responsibility for any damages arising from any inaccuracy or misprint of such information. 12) Please use the Products in accordance with any applicable environmental laws and regulations, such as the RoHS Directive. For more details, including RoHS compatibility, please contact a ROHM sales office. ROHM shall have no responsibility for any damages or losses resulting non-compliance with any applicable laws or regulations. 13) When providing our Products and technologies contained in this document to other countries, you must abide by the procedures and provisions stipulated in all applicable export laws and regulations, including without limitation the US Export Administration Regulations and the Foreign Exchange and Foreign Trade Act. 14) This document, in part or in whole, may not be reprinted or reproduced without prior consent of ROHM. AEK59-A1-0255 ©2016 ROHM Co., Ltd. All rights reserved. Application Engineer Div.