DC/DC Converter Selection Guide
Rev. 4.0
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Table of Contents
DC/DC Switching Regulators
Buck Converters （Integrated FET Switch）
4
24
Boost / Buck‐Boost / SEPIC and Inverting Converters 14
31
Controllers (External FET Switch)
15
32
Power MOSFETs
18
33
Isolated DC/DC Power Supplies
19
34
Low Dropout (LDO) Regulators 21
35
For DDR SDRAM
S
23
37
Linear Regulators
Linear Regulators
38
Notes
DC/DC Converters Selection Guide
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1
ROHM’s Website
Please visit ROHM’s website to view the
entire product lineup of power ICs.
http://www.rohm.com
Access Datasheets, Application/Technical
Notes, Reference Designs, Evaluation
Boards, and other useful information.
DC/DC Converters
MOSFETs
Please refer to the latest datasheet before actual use.
DC/DC Converters Selection Guide
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2
ROHM Power Supply Solutions
ROHM offers a broad portfolio covering the entire range of
power supplies.
supplies This selection guide includes DC/DC
switching regulators, linear regulators, isolated DC/DC
Secondary Side
Primary Side
converters, and power MOSFETs.
Pages 4-12 detail our newest series of buck converters.
Users can select the ideal IC based on input voltage, output
current and necessary functions.
current,
functions
Page 13 introduces buck switching regulators that support
AC
AC/DC
Transformer
operation up to 6MHz. Ultra-compact chip-scale packages
and compatibility with low-inductance coils contribute to
SSwitching Regulator
it hi R
l t
DC/DC
Wireless Power Supply
PFC
smaller power supply designs, making them suitable for
Linear Regulator
Li
R
l t
LDO
Power Management Switch
High‐side Switch
mobile
bil devices.
d i
Page 14 lists buck-boost DC/DC switching regulators that
Isolated
DC/DC
DC
provide stable power supply in portable devices using
Voltage Detector
Power
MOSFET
single-cell lithium-ion batteries.
Pages 15-17 discusses our controller ICs that support large
output currents via external MOSFET.
Page 15 includes models that deliver both fast load response
and large current output in FPGA power supplies, while
60V controllers are mentioned on page 17. Page 16 explains
H3RegTM, our original fast transient response technology.
Power Supply Block Diagram
This allows users to select the optimum IC based on
application requirements. However, please verify all
specifications, including functions and values, be
referring to the latest datasheet before actual usage.
Page 18 introduces MOSFETs ideal for use as external
I d
Industrial‐Grade ICs
i l G d IC
switching elements for controller ICs.
Long-term supply of products is ensured for the industrial
Page 19 lists isolated DC/DC switching regulators that
market. ROHM guarantees stable product supply for over
eliminate the need for an optocoupler in the feedback circuit,
10 years to meet the requirements of industrial equipment
improving
p
g reliability.
y
manufacturers.
Page 21 spotlights our wide linear regulator (LDOs) lineup,
Part numbers developed for industrial equipment end in
available in 4 different input withstand voltages, 5 output
LB. Typically, when purchasing the Minimum Order
currents, and a variety of output voltages.
Quantity (MOQ) of a standard reel containing 2,000-
Page 23
introduces termination regulators for DDR
3,000 pieces, there will often be pieces left over, which
SDRAM Superior output voltage precision and load
SDRAM.
are then either disposed of or stored for a long period of
regulation help to maintain the required level of voltage
time. To prevent this, ROHM is supporting smaller
accuracy stipulated by JEDEC.
production lots by offering 250pc reels. Inventory/stock
Product lists and specifications can be found after page 24.
status can be checked in real-time on our website.
DC/DC Converters Selection Guide
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Standard Reel
2,000 to 3,000 pcs
Small Reel for the Industrial Market
250 pcs
3
DC/DC Switching Regulators
Buck Converters （Integrated FET Switch）
New High Efficiency DC/DC Buck Converters
Select the appropriate buck DC/DC converter from
BD9x Series
BD9x Series
the matrix of input voltage and output current. The
○ ‐ Current Mode Control
◎ ‐ On‐time Control
▼ ‐ Light Load Mode
△ ‐ Nonsynchronous
○ BD9C601EFJ
Maximum Rating
while the following letter represents the maximum
20V
input voltage rating and the next number indicates the
◎ BD9B600MUV ▼
6.0
‘9’ in the part number after ‘BD’ signifies ‘buck’ type,
output current.
○ BD9A600MUV ▼
○ BD9C501EFJ
20V
○ BD9C401EFJ
20V
Part No. Description
5.0
◎ BD9B500MUV ▼
B
◎ BD9B400MUV ▼
4.0
Output Currentt (A)
3.0
20V
◎ BD9D320EFJ
20V
○ BD9C301FJ / BD9C301FJ‐LB
20V
SW=570kHz
◎ BD9B300MUV / BD9B301MUV‐LB ▼
○ BD9E302EFJ ▼
30V
○ BD9E303EFJ‐LB
40V
○ BD9E301EFJ
BD9E301EFJ‐LB
LB
40V
○ BD9E300EFJ‐LB
40V
SW=300kHz
○ BD9A300MUV / BD9A301MUV‐LB ▼
SW=570kHz
2.5
SW=1MHz
◎ BD9B200MUV ▼
2.0
0
0
Serial No.
00, 01, 02, ･･･
Output Current
1 : ≤ 1A 2 : ≤ 2A
3 : ≤ 3A
4 : ≤ 4A
・
・
A ≤ 10A
A：≤ 10A
・
Z : Controller
30V
○ BD9E102FJ ▼
30V
coded, with part numbers of the same color indicating
○ BD9E101FJ‐LB
40V
pin compatibility. For example, the BD9Axxx series
○ BD9E100FJ‐LB
40V
○ BD9G101G △
BD9G101G △
45V
The chart at left,
left showing the BD9x lineup,
lineup is colorcolor
SW=570kHz
◎ BD9B100MUV ▼
SW=1MHz
○ BD9A100MUV / BD9A101MUV‐LB ▼
05
0.5
5.0
12
Input Rail Voltage (V)
DC/DC Converters Selection Guide
3
○ BD9E151NUX △
SW 570kH
SW=570kHz
3.3
Maximum Rated Input 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
E : ≤
40V Current Mode
F : ≤ 40V On‐time
G : ≤ 80V Current Mode
A
Note: There are some part numbers that do not conform with this rule 1.2
1.0
9
Topology
9 : Buck
8 : Boost, Buck‐Boost,
Inverting
○ BD9A400MUV ▼
◎ BD9D321EFJ ▼
D
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24
in green supports input rail voltages of 3.3V and 5.0V
in output currents of 1A, 3A, 4A, and 6A. Currentmode
d controll is
i utilized
ili d for
f fast
f load
l d response. And
A d
the models are pin-compatible with one another,
making replacement easy in response to changing
current requirements.
4
DC/DC Switching Regulators
Buck Converters （Integrated FET Switch）
BD9x Series : Pin Compatibility Chart
24V
12V
5.0V
3.3V
BD9Dxxx
Series
BD9Exxx
Series
BD9B100 1A *1
BD9B200 2A *1
BD9B300 3A *1
BD9B400 4A *1
BD9B500 5A *1
BD9B500 5A *1
BD9B600 6A *1
BD9C301 3A
BD9C401 4A
BD9C501 5A
BD9C601 6A
BD9D320 3A
BD9D321 3A *1
BD9E100 1.0A 1MHz
BD9E101 1.0A 570kHz
BD9E102 1.0A 570kHz *1
BD9E300 2.5A 1MHz
BD9E301 2 5A 570kHz
BD9E301 2.5A 570kHz
BD9E302 3.0A 570kHz *1
BD9E303 3.0A 300kHz
Current Mode Control
On Time Control
Current Mode Control
On Time Control
Pin C
Compatible
BD9Cxxx
Series
Pin Compatible
Pin C
Compatible
BD9A100 1A *1
BD9A300 3A *1
BD9A600 6A *1
Pin C
Compatible
BD9Bxxx
Series
*2
Pin Compatible
Pin C
Compatible
BD9Axxx
Series
Current Mode Control
*1 : Automatically switches from PWM to PFM at lighter loads
*2 : Only one terminal is required to switch from the CR component to jumper resistance
y
q
p
j p
Similarly, the green BD9Bxxx series,
Current mode control is adopted and of
BD9E151 differs from the red BD9Exxx
The selection chart on the next slide
which employs the on-time control method,
course all models within the series are pin-
series. Compatible with input rail voltages
provides a breakdown of the BD9x series
is pin-compatible across all available
compatible.
of 12V and 24V, the units achieve
based on rectification method, control
output currents (1A,
(1A 2A,
2A 3A,
3A 4A,
4A 5A,
5A and
The orange BD9Dxxx series is compatible
asynchronous rectification via current mode
mode and input voltage/output current
mode,
6A) and features faster load response than
with input rail voltages of 5.0V or 12V.
control. Provides 1.2A output current in a
ranges. 2 types of rectification are utilized,
the
improved
Only one output current (3A) is offered,
compact 2mm×3mm×0.6mm package.
asynchronous (diode) and synchronous.
efficiency at light loads. In addition, pin
selectable with/without high efficiency
BD9G101
Asynchronous
compatibility with the BD9Axxx series
light load mode.
rectification and current mode control up to
enables
bl
easy replacement
l
t when
h
d i
design
Th redd BD9Exxx
The
BD9E
series,
i
suitable
it bl for
f rail
il
an input
i
voltage
l
off 42V.
42V Easily
E il configure
fi
reducing
d i
IC die
di area. However,
H
if the
th
changes require faster load response.
voltages of 12V or 24V, utilizes current
0.5A output power supplies.
output voltage is low efficiency suffers.
The blue BD9Cxxx series supports input
mode control and is available in output
But when the output voltage is high
rail voltages of 5V or 12V in output
currents
efficiency is the same as with synchronous
currents of 3A, 4A, 5A, and 6A.
300kHz/570kHz/1MHz
BD9Axxx
series
for
of
1A,
2.5A,
3A
and
switching
delivers
asynchronous
rectification
utilizes
rectification.
In contrast, synchronous
frequencies. The 1A and 3A products
rectification minimizes efficiency drops
feature high efficiency at light load. All
across the entire output voltage range and
models are pin-compatible.
ensures continuous, stable operation even
when the load current decreases.
DC/DC Converters Selection Guide
an
external diode instead of a low-side switch,
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5
BD9x Series Selection Chart
Asynchronous
Rectification
（Diode Rectification）
Users can select between 2 types of
control method: current mode and on-
Rectification
Rectification Method
time control. Current mode provides
faster load response characteristics than
Synchronous Rectification
Control Mode
conventional voltage mode control, and
phase compensation settings are easily
Control Mode
Current Mode
Current Mode
implemented. In addition, output ripple
voltage is small.
On‐Time On-time control
features faster load response than current
Light‐Load Mode
Light‐Load Mode
Yes
No
Light‐Load Mode
No
Yes
mode
No
BD9E151
BD9Axxx
BD9Cxxx
BD9Bxxx
BD9D320
6.0‐28V, 1.2A
2.7‐5.5V, 1A‐6A
4.5‐18V, 3A‐6A
2.7‐5.5V, 1A‐6A
4.5‐18V, 3A
BD9G101
BD9Ex02
BD9Ex00
BD9D321
6.0‐42V, 0.5A
7.0‐26V, 1A‐3A, 570kHz
7.0‐36V, 1A‐2.5A, 1MHz
4.5‐18V, 3A
doesn‘t
require
phase-
On-time
On
time control was further improved by
increasing load response using ROHM’s
proprietary H3RegTM control method.
Models equipped with a high-efficiency
light load mode are available that
conserve power during standby.
standby When
BD9Ex01
the load current decreases switching
7.0‐36V, 1A‐2.5A, 570kHz
Asynchronous
Rectification
Current Mode Control
and
compensation.
frequency and operating current are
BD9E303
reduced, improving efficiency. However,
7.0‐36V, 3A, 300kHz
since the switching frequency will vary
Synchronous Rectification
Synchronous Rectification
Current Mode Control
On‐Time Control
d
depending
di
on the
th load
l d current,
t signal
i l
interference within the device must be
taken into account, along with increasing
output ripple voltage.
Thin, Compact Packages
The exposed pad enables efficient heat
dissipation from the bottom of the
ppackage
g to the PCB,, makingg it ppossible
to offer a 6A DC/DC solution in a
HTSOP‐J8
VQFN016V3030
4.90mm×6.00mm
h: 1.00mm
3.00mm×3.00mm
h: 1.00mm
compact form factor.
DC/DC Converters Selection Guide
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6
DC/DC Switching Regulators
Buck Converters （Integrated FET Switch）
BD9B300MUV automatically switches to
light load mode
3.3V/5V Input Rail Solutions
Power Supply Solutions for Consumer Equipment
BD9A300MUV automatically switches to
light load mode
BD9A100MUV/BD9A300MUV/BD9A600MUV/BD9B300MUV generate low voltages (i.e. 1.8V) from a 3.3V or 5V supply
3.3V or 5V
PC/Tablet board
BD9A300MUV
or
BD9A600MUV
3.3V/3A
3.3V/6A
100
NAND Flash Memory
90
E bl
Enable
1.8V/1A
BD9A100MUV
70
DDR Memory
Effi ci ency (%)
Example： Storage
80
2.5V/1A
/
BD9A100MUV
1.2V/3A
BD9B300MUV
Controllers
‐ DDR
‐ NAND Flash
‐ I/F
‐ I/O
60
BD9A300MUV
PWM fixed mode
50
40
Conditions
VIN = 5.0V
VO = 1.8V
fSW = 1MHz
30
20
10
0
0.001
0.01
0.1
Product Example: BD9B300MUV
 Input Voltage Range
： 2.7V to 5.5V
BD9B300MUV
 Output Voltage Range ： 0.8V to (VIN×0.8)V
VIN
PGD
PVIN
PGD
PGD
 Reference Voltage
： 0.8V±1.0%
0 8V±1 0%
AVIN
AVIN
BOOT
BOOT
 Output Current
： 3A
EN
Enable
CBOOT
 Switching Frequency ： 1MHz / 2MHz
10µF
0.1µF
 Built-in Switching FET ： 35mΩ
SW
SW
AGND
1.0µH
AGND
 Circuit Current
： 35μA
PGND
PGND
p
characteristics via fixed
 Fast transient response
R1
SS
on-time control
SS
 High efficiency Light Load Mode
MODE
MODE
CSS
FB
FB
 Selectable Light-Load Automatic Switching
FREQ
and PWM Fixed modes
R2
 Adjustable soft start
 Power Good output
 Multiple protection functions
BD9B300MUV Application Circuit
Over Current Protection (OCP), Short Circuit Protection (SCP),
Thermal Shutdown Protection(TSD), Under-Voltage Lock Out (UVLO)
10
BD9B300MUV Efficiency vs. Load Current
15mm×8mm
VOUT
CFB 22µF×2
BD9B300MUV PCB
DC/DC Converters Selection Guide
1
Loa d Current (A)
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7
2 series offered to meet a variety of system requirements
Both the BD9AxxxMU and BD9BxxxMUV series are pin-compatible from 1A to 6A, allowing users to select the ideal solution to meet set demands. Operation automatically switches between
high speed PWM mode for larger currents and power
high-speed
power-saving
saving SLLMTM (PFM mode) for smaller load currents
currents. The BD9BxxxMUV series is a higher performance line that enables easy
replacement with only minor changes to the PCB layout (1 pin), making it possible to quickly respond to sudden design changes.
Part No.
Increasing Performance
High Performance Series
Light Load Operation
Control Method
BD9B100MUV
BD9B200MUV
BD9B300MUV
BD9B301MUV‐LB
BD9B400MUV
BD9B500MUV
BD9B600MUV
Constant On-Time
BD9A100MUV
BD9A101MUV‐LB
BD9A300MUV
BD9A301MUV‐LB
BD9A400MUV
BD9A600MUV
Current Mode
Function Differences
• Constant on-time method results in faster transient response than the BD9AxxxMUV series
• Phase compensation not required
• Improved efficiency across the entire load range (>BD9AxxxMUV)
• MODE terminal = Low → Automatic light load switching, MODE terminal = High → Fixed
PWM mode
• FREQ terminal = Low → 2MHz operation,
operation FREQ = High → 1MHz (2MHz operation enables
support for compact 1μH coils)
Deep SLLM
• MODE terminal = Low → Fixed PWM mode, MODE terminal = High → Automatic light load
TM
SLLM : Simple Light Load Mode
SLLM
switching
(Same function as the BD9Bxxx series,
series but logic is reversed)
PVIN
C2
C
C8
GND
SS 9
AGND
FB
ITH
MODE
5
6
7
8
11
10
3
VOUT
GND
PGND
SS 9
4
C5
4
L1
SW
BD9B300MUV
BD9BxxxMUV
GND
PGND
12
2
VIN
C1
C
VOUT
C7
10
3
13
BOOT
PVIN
11
BD9A300MUV
BD9AxxxMUV
C2
C
C1
C
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
8
R1
C5
15
EN
C6
16
AVIN
PGOOD
ENABLE
PGOOD
ENABLE
SLLMTM : Simple Light Load Mode (automatically switches from PWM to PFM at light loads)
R1
DC/DC Converters Selection Guide
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J1
J3
J2
R2
J1
R3
C3
R2
C4
8
DC/DC Switching Regulators
Buck Converters （Integrated FET Switch）
12V Input Rail Solution
Power Supply Solutions for Consumer Electronics
BD9D320EFJ/BD9D321EFJ/BD9C301FJ/BD9C401EFJ/BD9C501EFJ/BD9C601EFJ generate 3.3V or 5V from a 12V
power supply
100
VO =5.0V
VO = 3.3V
VO = 1.8V
90
Isolated
AC/DC
12V
Example：AV devices
Product Example: BD9D321FEJ
BD9D320EFJ
BD9D321EFJ
5V/3A
BD9D320EFJ
BD9D321EFJ
5V/3A
BD9D320EFJ
BD9D321EFJ
1.8V/3A
BD9D320EFJ
BD9D321EFJ
3.3V/3A
BD9C301FJ
BD9C401EFJ
BD9C501EFJ
BD9C601EFJ
 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
 Switching Frequency ： 700kHz
 Built-in FET Switch ： 100mΩ, 70mΩ
 Fast transient response characteristics via constant
on-time
ti control
t l
 No phase compensation components required
 Compatible with output ceramic capacitors
 Synchronous rectification type
 High efficiency mode for light loads
 Variable soft start function prevents inrush current
during power on
 Multiple protection functions
Over Current Protection (OCP), Short-Circuit Protection (SCP),
Thermal Shutdown (TSD), Under-Voltage Lock Out (UVLO)
DC/DC Converters Selection Guide
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80
Tuner, AV
70
E
EFFICIENCY (%)
85 to 265VAC
USB ports
DDR Memoryy
60
50
40
30
3.3V
3A, 4A,
5A, 6A
Conditions
VIN = 12V
20
Controller
‐ DDR
‐ I/F
‐ I/O
10
0
0.001
0.01
0.1
LOAD CURRENT (A)
1
10
BD9D321EFJ: Efficiency vs. Load Current
BD9D321EFJ
VIN
VIN = 12V
VOUT = 1.8V
BOOT
EN
SW
VOUT
50mV/div
GND
VREG
FB
SS
ILOAD
2A/div
IO = 1A→3A→1A
100μs/div
BD9D321EFJ Transient Response
BD9D321EFJ Application Circuit
17mm×20mm
BD9D320EFJ PCB
9
DC/DC Switching Regulator
Buck Converter (Integrated FET Switch)
24V Input Rail Solution
Power Supply Solution for Home Appliances
BD9E102FJ/BD9E302EFJ generates 3.3V or 5V from 15V/24V power supply. Ideal replacement for LDOs to provide
greater power savings.
100
BD9E102FJ
90
Example： Refrigerator
・Motor
Motor Driver
Driver
・IPM (Intelligent Power Module.)
80
Effi ci ency (%)
70
85 to 265VAC
Replaces LDO
5.0V/1A
15V
BD9E102FJ
Isolated
AC/DC
Sensors and Monitors
‐ Thermistor (Refrigerator)
‐ Thermistor (Freezer)
‐ CO2 Sensor
60
50
LDO
(BA50BC0WT)
40
30
Replaces LDO
15V
BD9E302EFJ
5.0V/3A
Conditions
VIN = 12V
VO = 5.0V
20
Controllers
‐ Digital Signal
‐ Network
‐ Touchscreen
‐ Compressor
10
0
1
10
100
Loa d Current (mA)
1000
Product Example: BD9E102FJ
BD9E102FJ: Efficiency vs. Load Current
 Input Voltage Range
 Output Voltage Range
： 7.0V to 26V
： (VIN×0.143)V to (VIN×0.7)V
(VIN×0.143) ≥ 1.0V
VIN
 Reference Voltage
： 0.8V±2.0%
12V
10μF
 Output Current
： 1.0A
 Switching Frequency
： 570kHz
 Supports 28V input for home appliances
Enable
 High
i h efficiency
ffi i
at light
li h loads
l d saves power during
d i standby
db
 Built-in FET switch
： 250mΩ, 200mΩ
 Fast transient response characteristics via current mode control
 Easily set phase compensation
 No external diode required (for synchronous rectification)
 Soft start prevents inrush current during power on
 Multiple protection functions
Over Current Protection (OCP), Short Circuit Protection (SCP),
Thermal Shutdown (TSD), Under Voltage Lock Out (UVLO)
DC/DC Converters Selection Guide
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VIN
VIN
BD9E102FJ
BD9E102FJ
BOOT
BOOT
0.1μF
SW
SW
6.8μH
VO
5.0V
22μF
EN
EN
AGND PGND
PGND FB
COMP AGND
FB
COMP
430kΩ
82kΩ
BD9E102FJ Application Circuits
BD9E102FJ Evaluation Board
10
DC/DC Switching Regulators
Buck Converters （Integrated FET Switch）
24V Input Rail Solution
Power Supply Solutions for Industrial Products
100
BD9E100FJ/BD9E101FJ/BD9E300EFJ/BD9E301EFJ/BD9E303EFJ generate 3.3V or 5V from a 12V/24V power supply
Isolated
AC/DC
24V
BD9E100FJ‐LB
5V/1A
3.3V/1A
BD9E101FJ‐LB
BD9E300EFJ‐LB
5V/2.5A
1.8V/3A
BD9E303EFJ‐LB
Base Unit
‐ ASIC
VO = 12V
80
VO = 5.0V
70
Effi ci ency (%)
85 to 265VAC
90
I/O Unit
‐ ASIC
60
50
40
Conditions
VIN = 24V
30
Analog Unit
‐ ASIC
20
10
CPU Unit
‐ CPU
0
0
05
0.5
1
15
1.5
2
25
2.5
Loa d Current (A)
Product Example: BD9E300EFJ‐LB
BD9E300EFJ‐LB: Efficiency vs. Load Current
 Long-term stable supply suitable for industrial applications
 Supports
pp
40V input
p for industrial equipment
q p
 Input Voltage Range ： 7.0V to 36V
 Output Voltage Range ： (VIN×0.15)V to (VIN×0.7)V
(VIN×0.15) ≥ 1.0V
 Reference Voltage
： 1.0V±2.0%
 Output Current
： 2.5A
 High 1MHz switching frequency enables compatibility with smaller
inductors
 Built-in FET switch ： 170mΩ, 140mΩ
 Fast transient response characteristics via current mode control
 No external diode required (for synchronous rectification)
 Soft start prevents inrush current during power on
 Multiple protection functions
Over Current Protection (OCP), Short Circuit Protection (SCP),
Thermal Shutdown (TSD), Under Voltage Lock Out (UVLO)
DC/DC Converters Selection Guide
www.rohm.com
VIN
BD9E300EFJ‐LB
BOOT
SW
27mm×10mm
EN
COMP
AGND PGND
FB
BD9E300EFJ PCB
BD9E300EFJ PCB
4700pF
30kΩ
BD9E300EFJ‐LB Application Circuit
Exposed pad ensures efficient heat dissipation
11
Product Example: BD9E151NUX
 DC-DC converter with built-in 30V MOSFET
VIN
 Input voltage range ： 6.0V
6 0V to 28V
24V
 Output voltage range ： (VIN×0.06)V to (VIN×0.7)V
10μF
(VIN×0.06) ≥ 1.0V
 Reference voltage
： 1.0V±1.0%
 Output current
： 1.2A
Enable
 Switching frequency: 600kHz
 Automatically switches to Pulse Skip Mode during light loads
(via diode rectification) to maintain high efficiency
 Integrated high side switching FET: 80mΩ
 Current mode control enables fast transient response
 Easily set phase compensation
 Variable soft start function prevents inrush current during power ON
 Multiple protection circuits
Overcurrent protection (OCP), overvoltage protection (OVP),
Thermal shutdown (TSD), Under voltage lock out (UVLO)
VCC
VCC
BD9E151NUX
BD9E151NUX
BST
BST
0.1μF
LX
LX
VOUT
5.0V
15μH
47μF
EN
EN
SS
SS
VC
VC
GND
GND
FB
FB
VSON008X2030
12kΩ
1000pF
2.0mm×3.0mm
h: 0.6mm
0.047μF
3kΩ
2.7kΩ
BD9E151NUX Application Circuit
Product Example: BD9G101G
BD9G101G
VCC
VCC
100
BST
BST
LX
LX
6.8μH
GND
FB
FB
3.9kΩ
680Ω
www.rohm.com
80
70
VIN=24V
VO=5.0V
60
50
40
30
0.1μF
BD9G101G Application Circuit
20
10
0
1
SSOP6
2.9mm x 2.8mm
h: 1.25mm
DC/DC Converters Selection Guide
VOUT
5.0V
10μF
EN
EN
VIN=12V
VO=5.0V
90
0.015μF
E
EFFICIENCY (%)
VIN
 DC-DC Converter with built-in 45V MOSFET
24V
 Input voltage range ： 6.0V to 42V
4.7μF
 Output voltage range ： (VIN×0.15)V to (VIN×0.7)V
(VIN×0.15)
×0 15) ≥ 1.0V
1 0V
 Reference voltage
： 0.75V±1.5%
Enable
 Output current
： 500mA
 High 1.5MHz switching frequency makes it possible
to use smaller inductors
y switches to Pulse Skipp Mode duringg light
g loads
 Automatically
(via diode rectification) to maintain high efficiency
 Integrated high side switching FET: 800mΩ
 Current mode control enables fast transient response
 Built-in phase compensation circuit
 Soft start function prevents inrush current during power ON
 Multiple
M lti l protection
t ti circuits
i it
Overcurrent protection (OCP), Thermal shutdown (TSD),
Under voltage lock out (UVLO)
10
100
LOAD CURRENT (mA)
1000
BD9G101G: Efficiency vs Load Current
12
DC/DC Switching Regulators
Buck Converters （Integrated FET Switch）
6MHz High Frequency Switching Regulators
BU9000xGWZ Series
100
90
Efficciency (%)
 Input Voltage Range
： 2.3V to 5.5V
 Output Voltage
： 1.2V, 1.25V, 1.8V, 2.5V, 3.0V, 3.3V
 Output Voltage Accuracy： ±2.0%
 Output Current
： 1.0A
 6MHz (max.) switching operation
 Ultra-compact chip scale package: 1.3mm x 0.9mm
 Fast transient response characteristics via hysteresis control
 No phase compensation components required
 PWM/PFM automatic switching function ensures high efficiency across
all load regions
 Switching frequency can be fixed via forced PWM mode
 Soft start prevents inrush current during power on
 Multiple protection circuits
Over Current Protection (OCP), Thermal Shutdown (TSD),
Under Voltage Lock Out (UVLO)
80
70
3.6V→3.0V
3.6V→1.8V
5.0V→3.3V
3.6V→1.2V
60
50
L : LQM21MPN1R0NG0 (Murata)
40
1
10
100
1000
Load Current (mA)
BU9000xGWZ: Efficiency vs Load Current
VO
50mV/div
7mm×4mm
Ultra‐Compact Wafer‐Level Chip‐Scale Package
IOUT
200mA/div
UCSP35L1
1.3mm×0.9mm×0.4mm
BU90002GWZ PCB
10μs/div
BU90003GWZ Transient Response (50mA → 350mA)
Output Voltage
Part No.
Input Voltage Range
Switching Frequency
PWM/PFM
Automatic Switching
1.2V
BU90003GWZ
2.3V to 5.5V
4MHz
✔
－
✔
1.25V
BU90007GWZ
2.3V to 5.5V
4MHz
✔
－
✔
1.8V
BU90004GWZ
2.3V to 5.5V
5.4MHz
✔
－
✔
2 5V
2.5V
BU90005GWZ
2 3V to 5.5V
2.3V
to 5 5V
6MHz
－
✔
(100mA max)
✔
3.0V
BU90006GWZ
2.3V to 5.5V
6MHz
✔
－
✔
3.3V
BU90002GWZ
4.0V to 5.5V
6MHz
✔
－
✔
DC/DC Converters Selection Guide
www.rohm.com
Forced PFM
Forced PWM
VIN
LX
FB
EN MODE GND
BU9000xGWZ Application Circuit
13
DC/DC Switching Regulator Boost / Buck‐Boost / SEPIC and Inverting Converter Portable Power Supply Solution
BD8306MUV generates 3.3V or 5.0V from 1 lithium-ion cell or 2-3 alkaline/NiCd/NiMH cells
Rechargeable
or
Dry‐Cell Battery
1.8V to 5.5V
BD8306MUV
3.3V/1A
NAND Flash Memory
or
5 0V/0 7A
5.0V/0.7A
BD9A100MUV
1.8V
DDR Memory
Product Example：BD8306MUV
PVCC
PGND
1.2V
Controllers
‐ DDR
‐ NAND Flash
‐ I/F
‐ I/O
Lx1
BD9B300MUV
2.5V
Lx1
BD9A100MUV
PVCC
 Input Voltage Range
： 1.8V to 5.5V
 Output Voltage Range ： 1.8 to 5.2V
 Reference Voltage
： 0.5V±1.0%
 Integrated 2A FET switch
 Configure a high efficiency buck-boost DC/DC converter with a single inductor
 Soft
S ft start
t t prevents
t inrush
i
h currentt during
d i power on
 Operating frequency: 500kHz to 1.5MHz
 Multiple protection functions
Short Circuit Protection (SCP), Thermal Shutdown (TSD),
Under Voltage Lock Out (UVLO)
PGND
VCC
Lx2
BD8306MUV
STB
Lx2
BD8306MUV: Efficiency vs. Output Current
DC/DC Converters Selection Guide
www.rohm.com
GND
INV
FB
Conditions
fSW = 1MHz
VO = 3.3V
VOUT
VOUT
RT
BD8306MUV Application Circuit
14
DC/DC Switching Regulators Controllers (External FET Switch)
Power Supply Solutions for FPGA
BD95601MUV-LB and BD95602MUV-LB utilize original H3RegTM technology to provide the fast transient response characteristics required for FPGAs. These power supply ICs are designed to
generate power supply voltages that meet the tight voltage accuracy specifications demanded by FPGAs from 12V input. In addition, compatibility with startup power supply sequences is provided.
FPGA Selection 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
BD95601MUV‐LB
1 0V±3 00% 6A
1.0V±3.00%, 6A
BD95601MUV‐LB
1.5V/1.35V±5.00%, 4A
BD95601MUV‐LB
1.2V±2.50%, 4A
BD95602MUV‐LB Application Circuit
VIN: 12V, VO: 3.3V
BD95602MUV‐LB
 H3RegTM 2ch DC/DC controller delivers fast transient response
 3 selectable modes: Light load, Continuous PWM, and Quiet light load
 Adjustable soft start function prevents inrush current during power on
 Power Good output
 Input Voltage Range ： 5.5V to 28V
 Multiple protection functions
 Output Voltage Range ： 1.0V to 5.5V
- Over Current Protection (OCP)
 Standard
St d d Voltage
V lt
： 0.7V±1.0%
0 7V±1 0%
- Over
O
V
Voltage
lt
P
Protection(OVP)
t ti (OVP)
 Switching Frequency ：150kHz to 500kHz - Thermal Shutdown (TSD)
- Under Voltage Lock Out (UVLO)
VOUT: 100mV/div
IO: 5A/div
IL: 5A/div
5A/di
20μsec/div
BD95602MUV‐LB Fast Transient Response Characteristics
DC/DC Converters Selection Guide
www.rohm.com
Avnet, Inc.
Power Module Board
For Mini Module Plus Development System
(Kintex‐7)
15
Fast Transient Response Technology
H3Reg
R TM Control Enables Quick Response to Load changes C t l E bl Q i k R
t L d h
Current mode control is a popular control method for switching regulators, but there are cases where the specifications for transient response characteristics with respect to load current changes
are insufficient. In these instances switching regulators utilizing hysteresis control are often used. Constant-on-time control, which is a type of hysteresis control, maintains constant output
voltage by feeding back ripple voltage that occurs within the output voltage and performing switching control while comparing the reference voltage with the bottom of the ripple voltage.
When the feedback voltage drops below the reference voltage a one-shot pulse is generated and the high-side switch turns on, supplying current to the output (from the input). In this method
sequential switching control is performed by simple comparison, virtually eliminating delay time for feedback control, enabling faster transient response than current mode control.
H3RegTM control is a more advanced type of constant on time control developed by ROHM. When the load current suddenly increases the output voltage drops and if the feedback voltage does
not rise higher than the reference voltage (even after the predetermined on-time) the on-time of the high-side switch is extended and more power is supplied, accelerating the return of the
output voltage. As a result, faster transient response can be obtained vs. constant on-time control. Plus, the number of switching operations during sudden load changes is decreased,
minimizing noise generation.
H3Reg
Controller
SW
R
IL
Q
Driver
IL
IO
VOUT
Io
S
SW
Vref
Constant On Time Control: Operating Waveforms
H3RegTM Block Diagram
IL
Io
SW
t + α
H3RegTM Control: Operating Waveforms
DC/DC Converters Selection Guide
www.rohm.com
16
DC/DC Switching Regulator Controller (External FET Switch)
48V Input Buck Controller
Product Example：BD9611MUV
p
The BD9611MUV buck synchronous rectification DC/DC controller features a withstand voltage of 60V and a wide input voltage range. PWM and voltage-mode control circuits are built in,
along with 2 external 10V Nch FET drive circuits. In addition, functions for adjusting the oscillation frequency and soft start time, providing overcurrent protection, and enabling synchronization
with external clocks are included, providing greater design flexibility. Furthermore, an under-voltage lock out circuit (EXUVLO) with a high accuracy reference voltage for the CTL pin is
connected, adjustable between VCC and GND (via resistance ratio). The controller also offers pre-bias compatibility and minimizes inrush current from the output side during startup.
 Input Voltage Range ： 10V to 56V
 Output Voltage Range ： 1.0V to (VIN×0.8)V
 Reference Voltage
： 0.8V±1.0%
 External Nch FET drive circuits built in
 Gate drive voltage
： 9.0V to 11V
 Pre-bias compatibility
 Variable soft-start prevents inrush current during power on
 Adjustable operating frequency ： 50kHz to 500kHz
 Set the UVLO value using external components
 External
E
l clock
l k synchronization
h i i
 Synchronous operation of multiple output channels possible using several ICs
 Multiple protection functions
Over Current Protection (OCP), Thermal Shutdown (TSD),
Under Voltage Lock Out (UVLO)
FB
CTL
VCC
CLH
CLL
RCL
INV
SS
BST
BD9611MUV
HG
REG5
LX
RTSS
RT
REG10
LG
SYNC
CLKOUT
GND PGND
100%
Efficiiency
95%
BD9611MUV Application Circuit
VIN=24V
VIN=36V
90%
85%
VIN=48V
80%
Conditions
VO = 12V
fSW = 250kHz
75%
70%
0
0 2
2 4
4 6
6 8
8 10
10 12
12 Load Current[A]
BD9611MUV Efficiency vs. Load Current
DC/DC Converters Selection Guide
www.rohm.com
VIN = 34V, V
= 34V VO = 12V, I
= 12V IO= 0A → 10A
= 0A → 10A
BD9611MUV Transient Response Characteristics
Exposed pad ensures efficient heat
dissipation
17
Power MOSFETs
Medium Power / Dual Package MOSFET
The HS8K/HP8K series are switchingg components
p
for DC/DC converters that integrate
g
high-side
g
and low-side MOSFETs in a single
g ppackage,
g , reducing
g mountingg area significantly.
g
y
Wiring inductance between the internal high-side and low-side MOSETs is minimized for improved conversion efficiency, and high efficiency operation at high frequencies is achieved
by decreasing on-resistance and capacitance using the latest processes.
FOM=Ron×Qgd
D1
G1
S1/D2
/
DC/DC
DC/DC
Controller
Controller
VOUT
G2
S2
7
Current Process
FOM=16
4
New Process
FOM=8
2
1
1
New
MOSFET
2
4
7
On‐Resistance Ron (mΩ)
10
Improved Performance Index FOM
(Figure of Merit)
Efficien
ncy (%)
HS8K/HP8K Series
Gate‐Drain Gaate Charge Qgd (nC)
10
VIN
Current Cu
e t
product
Conditions
VIN = 19V
VO = 1.05V
fSW = 1MHz
Application Circuit Diagram
Product Example：HS8K/HP8K series
 30V withstand voltage
 Incorporates high-side and low-side MOSFETs into a single package to
reduce mounting area
 Achieves high efficiency operation even at high frequencies efficiency
by combining the latest device process and packaging technologies
 Performance index (FOM) improved by 2 times
 Nch + Nch configuration
 Drain current: 32A+12A
Load Current (A)
Single Type
Dual Type
High‐side
MOSFET
Greater efficiency during high‐frequency switching operation
Low‐side
MOSFET
Integrated design reduces mounting area by 50%
DC/DC Converters Selection Guide
www.rohm.com
18
Isolated DC/DC Power Supply
Flyback Converter
Product Example：BD7F100HFN‐LB
p
The newly developed BD7F100HFN-LB isolated flyback DC/DC converter IC stabilizes the secondary output via primary flyback voltage control, eliminating the need for a feedback
path from the output. As a result, the optocoupler typically used for isolating the feedback path in conventional isolated converters is no longer required. This reduces both costs and
component count considerably, improving reliability. And in terms of performance, fast load response is achieved by utilizing adaptive on-time control, while an automatic light load
mode ensures high efficiency across all load regions. Cross-regulation is also greatly improved. Ideal for isolated power supplies in a variety of equipment, including isolated gate
driver power supplies for inverters.
inverters
 Input Voltage Range
： 3.0V to 40V (45V Rated)
 Switch Terminal Voltage ： 50V (60V Rated)
 Switch Current Limit
： 1.25A
 Operating Frequency
： 400kHz
 Reference Voltage
： ±1.5%
±1 5%
 Fast load response via adaptive type on-time control
 Fixed frequency operation simplifies EMC countermeasures
 Automatic light load mode ensures high efficiency across all load regions
 Eliminates the need for parts that cross the isolation boundary, improving
functional safety
 Limited-life components not required, enabling long-term operation
 Supports multi-output configurations for superior cross-regulation
 Load compensation function for secondary SBD
 Output voltage adjustable based on 2 external resistors and transformer winding ratio
 Soft start function
 Multiple protection circuits
Over Current Protection (OCP), Thermal Shutdown (TSD), Under Voltage
Lock Out (UVLO)
Ex：Inverter
VIN
VOUT_UH
BD7F100HFN‐LB
GND_UH
VIN
VIN
VOUT_UH
Isolator
MCU
VOUT_UH
Gate Driver
GND_UH
VIN
UH
GND_UH
VOUT_WH
BD7F100HFN‐LB
GND_WH
VIN
VOUT_WH
WH
Isolator
Gate Driver
GND_WH
VIN
VOUT_WH
WH
WH
GND_WH
VOUT_L
VIN
SDX/EN
BD7F100HFN‐LB
BD7F100HFN‐LB
GND_L
FB
COMP
VIN
SW
AGND
REF
PGND
VOUT_L
Isolator
Isolator
BD7F100HFN-LB Application Circuit (24V→5V)
DC/DC Converters Selection Guide
www.rohm.com
GND_L
VOUT_L
Gate Driver
UL
Gate Driver
WL
GND_L
19
VIN
SDX/EN
Vcc1
Ex：RS485 Transceiver
Vcc2
BD7F100HFN‐LB
FB
COMP
BD7F100HFN‐LB
SW
AGND
REF
PGND
Vcc1
BD7F100HFN-LB Application Circuit (24V→±15V)
MCU
Vcc2
Vcc1
DE
DI
Isolator
RS485 transceiver
RO
VIN
SDX/EN
BD7F100HFN‐LB
5.25
FB
SW
REF
PGND
BD7F100HFN LB Application Circuit (5V→5V)
BD7F100HFN-LB
Max. Output Power (W)
AGND
5.2
8
5.15
7
Output Vo
oltage (V)
COMP
6
5
4
3
Without Load Compensatio
4.95
4.9
Conditions
VIN = 24V
VOUT = 5 0V
OUT = 5.0V
4.75
0
0
5
10 15 20 25 30 35 40 45 50
VIN Voltage (V)
BD9F100HFN-LB: Max. Output Power vs VIN Voltage
www.rohm.com
5
4.8
1
DC/DC Converters Selection Guide
5.05
4.85
2
BD7F100HFN-LB Evaluation Board
With Load Compensation
5.1
0
200 400 600 800
Load Current (mA)
1000
Load Compensation Function Efficiency
The Load Compensation Function corrects the output voltage
drop based on the Vf characteristics of the secondary SBD that
varies depending on the load current
20
Linear Regulators Low Dropout (LDO) Regulators
Low Noise Power Supply Solutions
Connecting LDO regulators after switching regulators reduces noise while improving efficiency,
efficiency making them ideal for circuits requiring low-noise
low noise power supplies such as communication
systems.
12V/24VDC
Switching
Regulator
5V
Switching
Regulator
3.3V
Switching
Regulator
USB Ports
Controllers
‐ DDR
‐ I/F
‐ I/O
2.5V
1.2V
BD12IC0WEFJ
1A
Transceiver
1.8V
BD18IA5WEFJ
0.5A
PLL
Product Examples: BDxxIxx , BDxxHxx, BDxxGxx, BDxxFxx series
 Input Voltages
： 7V, 10V, 15V, 30V
 Output Currents
： 0.1A, 0.3A, 0.5A, 1.0A, 1.5A
 Fixed and variable output voltage types available (adjustable via external resistor)
 Output Voltage Range
： 0.8V to 15V
 Output Voltage Accuracy ： ±1%
 Compatible
C
ibl with
i h output ceramic
i capacitors
i
 Enable function
 Soft-start prevents inrush current during power ON
 Thermal Shutdown (TSD)
 Over Current Protection (OCP)
Vo
Vcc
BD00IA5WEFJ
EN
GND
FB
Vo
Vcc
BD18IA5WEFJ
Vo_s
EN
GND
BD18IA5WEFJ Application Circuit
BD00IA5WEFJ Application Circuit
BD00IA5WEFJ Application Circuit
DC/DC Converters Selection Guide
www.rohm.com
21
Part Number Explanation
B
Output Voltage
00 : Adjustable
10 : 1.0V
12 : 1 2V
12 : 1.2V
1C : 1.25V
15 : 1.5V
18 : 1.8V
25 : 2.5V
26 : 2.6V
30 : 3.0V
30
30
33 : 3.3V
D
1
BDxxFA1FP3
Series only
Note：Some part numbers do not conform to these guidelines
8
H
A
5
W
EFJ
Package
EFJ : HTSOP‐J8 HFV : HVSOF6
NUX : SON008X2030
FP3 : SOT89‐3
50 : 5.0V
54 : 5.4V
60 : 6 0V
60 : 6.0V
70 : 7.0V
80 : 8.0V
90 : 9.0V
J0 : 10V
J2 : 12V
J5 : 15V
J5
5
HTSOP‐J8
4.9mm×6.0mm
H: 1.0mm
H: 1.0mm
Shutdown Switch
BDxxIxxWHFV
Series only
BDxxGA3WNUX
Series only
HVSOF6
1.6mm×3.0mm
H: 0 75mm
H: 0.75mm
VSON008X2030
2.0mm×3.0mm
H: 0 6mm
H: 0.6mm
Brank : none Brank : none
W : having
Maximum Input Voltage
I : 7V
H : 10V G : 15V
F : 30V
Output Current
A3 : 300mA A5 : 500mA
C0 : 1A
C5 : 1.5A
Compact packages with exposed pad for efficient heat dissipation characteristics
Product Example：BUxxUA3WNVX Series
Product Example：BUxxUA3WNVX Series
900
VOUT
VIN
BU18UA3WNVX
STBY
GND
BU18UA3WNVX Application Circuit
800
Conditions:
IOUT = 200mA
700
600
Existing P d t
Product
500
400
300
200
SSON004X1010
1.0mm x 1.0mm
H: 0.6mm
Compact Package
www.rohm.com
I/O Dropout Voltage (mV)
 Compact 1.0mm x 1.0mm x 0.6mm package (SSON004X1010)
 Input Voltage Range
： 1.7V to 5.5V
 Input Rated Voltage
： 6V
 Output Current
： 300mA
 Output Voltage
： 1.0V to 3.7V
 Output Voltage Accuracy ： ±1% (±25mV for VOUT<2.5V products)
 Circuit Current
： 50μA
 Supports ceramic output capacitors
 Enable function
 Output
O
di
discharge
h
f
function
i
 Thermal Shutdown (TSD)
 Over Current Protection (OCP)
DC/DC Converters Selection Guide
SOT89‐3
4.5mm×4.15mm
H: 1.5mm
H: 1.5mm
100
BUxxUA3WNVX Series
BUxxUA3WNVX Series
0
1
1.5
2
VOUT Voltage (V)
2.5
3
Input/Output Dropout Voltage Characteristics
22
Linear Regulators for DDR SDRAM
DDR SDRAM Power Supply Solution
DDR memory requires 3 power supplies. VDDQ used
3.3V to 5.0V
BD9B300MUV
BD9B600MUV
1.5V
VDDQ
for driving the memory cell requires fast load response
and high voltage accuracy to maintain reliable memory
VTT
operation. Input to the memory cell is based on the
RT
voltage
g VREF, which is half of VDDQ.
Q Although
g the
VCC
VDDQ
VTT_IN
BD35395FJ‐M
VDDQ
necessary current is small, voltage accuracy is required,
VDDQ
VREF
VTT
…
Controller
DDR3L SDRAM
along with the need to follow VDDQ voltage
fluctuations. The VTT memory output termination
voltage terminates memory output through termination
resistors RT.
RT A voltage level half of VDDQ is needed to
follow changes to the VDDQ voltage, which is the same
as VREF. As the memory output switches to High or
Low the output current needs to quickly follow source
or sink operation.
Supports JEDEC Compatible DDR1/2/3/3L
Supports JEDEC‐Compatible DDR1/2/3/3L
Product Example：BD35395FJ‐M
BD35395FJ-M is a termination regulator compatible
with JEDEC-compliant DDR1/2/3/3L SDRAM. VTT,
one of the 3 power supplies required for DDR
memory, is built in. VTT output is a linear power
supply with integrated N-MOSFET capable of
supplying a maximum of 1A to both the sink and
source. Superior transient response characteristics are
achieved using a high-speed internal opamp. A bias
supply of 3.3V or 5.0V is required to drive the
internal N-MOSFET. To maintain the requisite
 Input
p Voltage
g Range
g ： 2.7V to 5.5V
 Output Current
： ±1A
 DDR1/2/3/3L SDRAM compatible
 Push-Pull power supply built in for termination (VTT)
 Compatible with ceramic output capacitors
 Enable function
 Power Good output
 Thermal Shutdown (TSD)
 Under Voltage Lock Out (UVLO)
voltage accuracy defined by JEDEC, the feedback
ppin ((VTTS)) is separated
p
from the reference input
p p
pin
(VDDQ), resulting in superior output voltage
accuracy and load regulation.
DC/DC Converters Selection Guide
www.rohm.com
BD35395FJ-M Application Circuit
23
DC/DC Switching Regulators
Buck Converters (Integrated FET Switch)
3.3V/5V Rail Input
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
BU9B001G
7
0.6
2.3～5.5
2.5
1.2
On‐time
‐
‐
‐
✔
‐
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
2.7～5.5
1.0～1.5
1
Current
‐
‐
BD8967FVM
7
0.9
4.5～5.5
3.3
1
Current
‐
BD9104FVM
7
0.9
4.5～5.5
3.3
1
Current
BU90002GWZ
7
1
4.0～5.5
3.3
6
BU90003GWZ
7
1
2.3～5.5
1.2
BU90004GWZ
7
1
2.3～5.5
BU90005GWZ
7
1
BU90006GWZ
7
BU90007GWZ
7
DC/DC Converters Selection Guide
Operating
Temperature
(℃)
Package
(mm)
✔
Latch
‐25～+85
VCSP50L2
(2.5×1.1)
Latch
‐25～+85
MSOP8
Recove Recove
ry
ry
‐40～+85
SSOP6
Recove Recove Incorporates in/output bias
ry
ry switch, 100% Duty
‐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)
4
On‐time
‐
‐
‐
✔
✔
Recove Recove
ry
ry
‐40～+85
UCSP35L1
(1.3×0.9)
1.8
5.4
On‐time
‐
‐
‐
✔
✔
Recove Recove
ry
ry
‐40～+85
UCSP35L1
(1.3×0.9)
2.3～5.5
2.5
6
On‐time
‐
‐
‐
✔
✔
Recove Recove
ry
ry
‐40～+85
UCSP35L1
(1.3×0.9)
1
2.3～5.5
2.3
5.5
3.0
6
On‐time
On
time
‐
‐
‐
✔
✔
Recove Recove
ry
ry
40 +85
‐40～+85
UCSP35L1
(1.3×0.9)
1
2.3～5.5
1.25
4
On‐time
‐
‐
‐
✔
✔
Recove Recove
ry
ry
‐40～+85
UCSP35L1
(1.3×0.9)
www.rohm.com
Pow
wer Good
Part No.
Theermal Protection
Output
Current
(A)
Exteernally
Syn
nchronizable
Adjustable Soft
Starrt
Syn
nchronous
Recctifier
Ligh
ht‐Load
Efficiency
Oveer‐Current
Protection
Input
Voltage
Maximum
Rating
(V)
Description
24
DC/DC Switching Regulators
Buck Converters （Integrated FET Switch）
3.3V/5V Rail Input (Continued）
Output
Current
(A)
Input
Voltage
Range
(V)
Output Voltage
(V)
Switching
Frequency
(MHz)
Control
Mode
BD9A100MUV
New 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
✔
‐
✔
✔
Deep
BD8964FVM
7
1.2
4.0～5.5
4.0
5.5
1.0～1.8
1.0
1.8
1
Current
‐
‐
‐
✔
‐
Latch
BD9107FVM
7
1.2
4.0～5.5
1.0～1.8
1
Current
‐
‐
‐
✔
✔
BD9123MUV
7
1.2
2.7～5.5
0.85～1.2
1
Current
✔
‐
‐
✔
✔
BU90023NUX
7
1.5
2.3～5.5
1.23
1
On‐time
‐
‐
‐
✔
✔
BU90028NUX
7
1.5
2.3～5.5
1.175
1
On‐time
‐
‐
‐
✔
✔
BD8961NV
7
2
4.5～5.5
3.3
1
Current
‐
‐
‐
✔
‐
Latch
BD9111NV
7
2
4.5～5.5
3.3
1
Current
‐
‐
‐
✔
✔
BD9110NV
7
2
4.5～5.5
1.0～2.5
1
Current
‐
‐
‐
✔
BD89630EFJ
7
2
2.7～5.5
1.0～2.5 *1
1
Current
‐
‐
‐
BD8960NV
7
2
2.7～5.5
1.0～2.5 *1
1
Current
‐
‐
BD9130EFJ
7
2
2.7～5.5
1.0～2.5 *1
1
Current
‐
BD9130NV
7
2
2.7～5.5
1.0～2.5 *1
1
Current
BD91370MUV
7
2
2.7～5.5
0.8～3.3 *1
1
☆ BD9B200MUV
7
2
2 7～5 5
2.7～5.5
0 8～(VIN×0.8)
0.8～(V
×0 8)
1/2
1 / 2
☆ Under Development
DC/DC Converters Selection Guide
Package
(mm)
Recove Recove
ry
ry
‐40～+85
‐40～+125
VQFN016V3030
Recove Recove
ry
ry
‐40～+85
VQFN016V3030
Latch
‐25～+85
25 +85
MSOP8
Latch
Latch
‐25～+85
MSOP8
Latch
Latch
‐40～+95
VQFN016V3030
Recove Recove
ry
ry
‐40～+85
VSON008X2030
Recove Recove
ry
ry
‐40～+85
VSON008X2030
Latch
‐25～+105
SON008V5060
Latch
Latch
‐25～+105
SON008V5060
✔
Latch
Latch
‐25～+105
SON008V5060
✔
‐
Latch
Latch
‐25～+85
HTSOP‐J8
‐
✔
‐
Latch
Latch
‐25～+105
SON008V5060
‐
‐
✔
✔
Latch
Latch
‐25～+105
HTSOP‐J8
‐
‐
‐
✔
✔
Latch
Latch
‐25～+105
SON008V5060
Current
‐
‐
‐
✔
✔
Recove Recove
ry
ry
‐40～+105
VQFN020V4040
On‐time
✔
‐
✔
✔
Deep
Recove Recove
ry
ry
‐40～+85
VQFN016V3030
Exteernally
Syncchronizable
Adju
ustable Soft
Starrt
Syncchronous
Recttifier
Ligh
ht‐Load
Efficciency
Oveer‐Current
Prottection
Operating
Temperature
(℃)
Pow
wer Good
Part No.
Thermal Protection
Features
Input
Voltage
Maximum
Rating
(V)
Description
Output voltage setting by 3‐bit
parallel control
*1 Restrictions depend on input/output voltage conditions.
www.rohm.com
25
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
New BD9A301MUV‐LB
7
3
2.7～5.5
0.8～(VIN×0.7)
1
Current
✔
e BD9B300MUV
9 300 U
New
☆ BD9B301MUV‐LB
7
3
27 55
2.7～5.5
0 8 (VIN×0.8)
0.8～(V
0 8)
1/2
1 / 2
O i
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
New BD9A400MUV
7
4
2.7～5.5
Under
BD9B400MUV
Planning
7
4
7
Under
BD9B500MUV
Planningg
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
✔
‐
✔
✔
D
Deep
Recove
eco e Recove
eco e
ry
ry
‐40～+85
0 85
‐40～+125
VQFN016V3030
Current
‐
‐
‐
✔
✔
Recove Recove
ry
ry
‐40～+105
VQFN020V4040
1
Current
‐
‐
‐
✔
✔
‐40～+105
VQFN020V4040
( IN×0.7))
0.8～(V
1
Current
✔
‐
✔
✔
✔
Recove Recove
ry
ry
‐40～+85
VQFN016‐V3030
2.7～5.5
0.8～(VIN×0.8)
1 / 2
On‐time
✔
‐
✔
✔
Deep
Recove Recove
ry
ry
‐40～+85
VQFN016V3030
4.8
2.7～5.5
0.9～3.3 *1
1.5
Current
‐
‐
‐
✔
✔
‐40～+105
VQFN020V4040
7
5
2.7～5.5
0.8～(VIN×0.8)
1 / 2
On‐time
✔
‐
✔
✔
Deep
Recove Recove
ryy
ryy
‐40～+85
VQFN016V3030
New BD9A600MUV
7
6
2.7～5.5
0.8～(VIN×0.7)
1
Current
✔
‐
✔
✔
✔
Recove Recove
ry
ry
‐40～+85
VQFN016‐V3030
☆ 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.
BD91363AMUV
☆ Under Development
DC/DC Converters Selection Guide
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
Latch
Description
Output voltage setting by 2‐bit
parallel control
Output voltage setting by 3‐bit
parallel control
*1 Restrictions depend on input/output voltage conditions.
www.rohm.com
26
DC/DC Switching Regulators
Buck Converters （Integrated FET Switch）
12V Rail Input
Features
Output
Current
(A)
Input
Voltage
Range
(V)
Output Voltage
(V)
Switching
Frequency
(MHz)
Control
Mode
BD8312HFN
15
1
3.5～14
1.2～12
1.5
Current
‐
‐
‐
✔
‐
‐
Recove
ry
‐
BD8313HFN
15
1.2
3.5～14
1.2～12
1
Current
‐
‐
‐
✔
‐
‐
Recove
ry
‐
BD1482EFJ
20
2
4.2～18
0.923～(VIN×0.7)
0.38
Current
‐
‐
✔
✔
‐
Recove Recove
ry
ry
‐
20
2
4.2～18
0.9～(VIN×0.7)
0.38
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)≦5.5V
0.5～0.8
H Reg
✔
‐
‐
✔
‐
Latch
Recove
ry
BD9325FJ
New BD9325FJ‐LB
0
20
2
4.75～18
4.75
8
0.9～(V
0.9
(VIN×0.8)
0.8)
0.38
Current
‐
‐
✔
‐
‐
BD93290EFJ
20
3
4.2～18
0.9～(VIN×0.7)
0.3
Current
‐
‐
✔
✔
BD1484EFJ
20
3
4.2～18
0.925～(VIN×0.7)
0.38
Current
‐
‐
✔
New BD9329AEFJ‐LB
20
3
4.2～18
0.9～(VIN×0.7)
0.38
Current
‐
‐
BD9C301FJ
New BD9C301FJ‐LB
20
3
4.5～18
(VIN×0.125)～(VIN×0.7)
(VIN×0.125)≧ 0.8
0.5
Current
‐
15.2
3
7.5～15
0.8～(VIN×0.5)
（VIN×0.5)≦5.5V
0.5～0.8
H Reg
BD95835EFJ
20
3
4.5～18
0.9～(VIN×0.6)
0.2～0.8
BD9D320EFJ
20
3
4.5～18
0 765～7
0.765
7.0
0
(VIN×0.07)～(VIN×0.65)
BD9D321EFJ
20
3
4.5～18
BD9859EFJ
15
3
20
3
New BD9328EFJ‐LB
BD95831MUV
BD9326EFJ
N
New
BD9326EFJ‐LB
BD9326EFJ
LB
100% Duty
‐25～+85
HSON8
100% Duty
‐40～+85
HSON8
‐40～+85
HTSOP‐J8
‐40～+85
HTSOP‐J8
‐
‐40～+105
VQFN020V4040
✔
‐20～+100
VQFN020V4040
Recove Recove
ry
ry
‐
‐40～+85
40
85
SOP‐J8
SOP
J8
‐
Recove Recove
ry
ry
‐
‐40～+85
HTSOP‐J8
✔
‐
Recove Recove
ry
ry
‐
‐40～+85
HTSOP‐J8
✔
✔
‐
Recove Recove
ry
ry
‐
‐40～+85
HTSOP‐J8
‐
‐
✔
‐
Latch
Recove
ry
‐
‐40～+85
‐40～+125
SOP‐J8
✔
‐
‐
✔
‐
Latch
Recove
ry
✔
‐20～+100
VQFN016V3030
On‐time
‐
‐
✔
✔
‐
Recove Recove
ry
ry
✔
‐40～+85
HTSOP‐J8
0.7
On‐time
‐
‐
✔
✔
‐
Recove Recove
ry
ry
‐
‐40～+85
HTSOP‐J8
0.765～7.0
(VIN×0.07)～(VIN×0.65)
0.7
On‐time
‐
‐
✔
✔
✔
Recove Recove
ry
ry
‐
‐40～+85
HTSOP‐J8
5.0～14
1.0～(VIN×0.7)
0.75
Current
‐
‐
‐
‐
‐
Recove Recove
ry
ry
‐
‐40～+85
HTSOP‐J8
4.75～18
0.9～(V
( IN×0.8))
0.38
Current
‐
‐
✔
‐
‐
Recove Recove
ry
ry
‐
‐40～+85
HTSOP‐J8
3
3
Over‐Voltage
Protection
Package
Externally
Synchronizable
Adjustable Soft
A
Start
Synchronous
Rectifier
Light‐Load
Efficiency
Over‐Current
Protection
Operating
Temperature
(℃)
Power Good
Part No.
TThermal Protection
Input
Voltage
Maximum
Rating
(V)
Description
Matrix pin short protection
Matrix pin short protection
Matrix pin short protection
*1 Restrictions depend on input/output voltage conditions.
DC/DC Converters Selection Guide
www.rohm.com
27
BD9C401EFJ
BD95841MUV
BD9327EFJ
New BD9327EFJ‐LB
BD9C501EFJ
BD95861MUV
Switching
Frequency
(MHz)
Control
Mode
20
4
4 5～18
4.5～18
(VIN×0.125)～(VIN×0.7)
(VIN×0.125)≧ 0.8
05
0.5
Current
15.2
4
7.5～15
0.8～(VIN×0.5)
（VIN×0.5)≦5.5V
0.5～0.8
20
4
4.75～18
0.9～(VIN×0.8)
20
20
5
6
Over‐Voltage
Protection
Output Voltage
(V)
Thermal Protection
n
Input
Voltage
Range
(V)
Externally
Synchronizable
Adjustable Soft
Start
Synchronous
Rectifier
Light‐Load
Efficiency
Over‐Current
Protection
Part No.
Output
Current
(A)
Power Good
Features
Input
Voltage
Maximum
Rating
(V)
Description
Operating
Temperature
(℃)
Package
‐
‐
‐
✔
‐
Latch
Recove
ry
‐
‐40～+85
40～+85
HTSOP J8
HTSOP‐J8
H Reg
✔
‐
‐
✔
‐
Latch
Recove
ry
✔
‐20～+100
VQFN016V3030
0.38
Current
‐
‐
✔
‐
‐
Recove Recove
ry
ry
‐
‐40～+85
HTSOP‐J8
4.5～18
(VIN×0.075)～(VIN×0.7)
((VIN×0.075)≧
) 0.8
0.5
Current
‐
‐
‐
✔
‐
Latch
Recove
ryy
‐
‐40～+85
HTSOP‐J8
7.5～18
0.8～(VIN×0.5)
（VIN×0.5)≦5.5V
0.5～0.8
H Reg
✔
‐
‐
✔
‐
Latch
Recove
ry
✔
‐20～+100
VQFN024V4040
0.5
Current
‐
‐
‐
✔
‐
Latch
Recove
ry
‐
‐40～+85
HTSOP‐J8
0.2～1.0
H Reg
✔
‐
✔
✔
✔
Latch
Recove
ry
✔
‐10～+100
VQFN040V6060
Operating
Temperature
(℃)
Package
BD9C601EFJ
20
6
4.5～18
(VIN×0.075)～(VIN×0.7)
(VIN×0.075)≧ 0.8
BD95500MUV
24
6
3.0～20
0.7～5.0
3
3
3
Output Discharge
24V Rail Input
Features
BD9G101G
BD9E100FJ‐LB
BD9E101FJ‐LB
Switching
Frequency
(MHz)
Control
Mode
45
0.5
6.0～42
(VIN×0.15)～(VIN×0.7)
(VIN×0.15)≧
×0 15)≧ 1.0
10
1.5
Current
‐
‐
‐
‐
‐
Recove Recove
ry
ry
‐
‐40～+105
SSOP6
7.0～36
(VIN×0.15)～(VIN×0.7)
(VIN×0.15)≧ 1.0
1
Current
‐
‐
‐
✔
‐
Recove Recove
ry
ry
✔
‐40～+150
SOP‐J8
7.0～36
(VIN×0.0855)～(VIN×0.7)
(VIN×0.0855)≧ 1.0
0.57
Current
‐
‐
‐
✔
‐
Recove Recove
ry
ry
✔
‐40～+150
SOP‐J8
0.57
Current
‐
‐
‐
✔
✔
Recove Recove
ry
ry
✔
‐40～+85
SOP‐J8
0.6
Current
‐
‐
✔
‐
‐
Recove Recove
R
R
ry
ry
✔
‐40～+85
VSON008X2030
40
40
1
1
BD9E102FJ
30
1
7.0～26
(VIN×0.143)～(VIN×0.7)
(VIN×0.143)≧ 1.0
BD9E151NUX
30
1.2
6.0～28
(VIN×0.06)～(VIN×0.7)
(VIN
0 06) (VIN 0 7)
(VIN×0.06)≧ 1.0
DC/DC Converters Selection Guide
www.rohm.com
Over‐Voltage
Protection
Output Voltage
(V)
Thermal Protectio
on
Input
Voltage
Range
(V)
Externally
Synchronizable
Adjustable Soft
Start
Synchronous
Rectifier
Light‐Load
Efficiency
Over‐Current
Protection
Output
Current
(A)
Power Good
Part No.
Input
Voltage
Maximum
Rating
(V)
Description
28
DC/DC Switching Regulators
Buck Converters （Integrated FET Switch）
24V Rail Input (Continued）
Features
Input
Voltage
Range
(V)
Output Voltage
(V)
Switching
Frequency
(MHz)
Control
Mode
BD9701CP‐V5
36
1.5
8.0～35
1.0～(VIN‐3.0)
0.1
Voltage
‐
‐
‐
‐
‐
Recove Recove
ry
ry
‐
BD9701FP
36
1.5
8.0～35
1.0～(VIN‐3.0)
0.1
Voltage
‐
‐
‐
‐
‐
Recove Recove
ry
ry
BD9703CP‐V5
36
1.5
8.0～35
1.0～(V
( IN‐3.0))
0.3
Voltage
g
‐
‐
‐
‐
‐
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‐I O×RON)
0.9
Voltage
‐
‐
‐
BD9873CP‐V5
36
1.5
8.0～35
1.0～(0.8×(VIN‐I O×RON)
0.11
Voltage
‐
‐
7.0～36
(VIN×0.15)～(VIN×0.7)
(VIN×0.15)≧ 1.0
1
Current
‐
‐
0.57
Current
‐
‐
‐
BD9E300EFJ‐LB
40
2.5
Package
100% Duty
‐40～+85
TO220CP‐V5
‐
100% Duty
‐40～+85
TO252‐5
Recove Recove
ry
ry
‐
100% Dutyy
‐40～+85
TO220CP‐V5
‐
Recove Recove
ry
ry
‐
100% Duty
‐40～+85
TO252‐5
‐
‐
Recove Recove
ry
ry
‐
100% Duty
‐40～+85
TO252S‐5
‐
‐
‐
Recove Recove
ry
ry
‐
100% Duty
‐40～+85
TO220CP‐V5
‐
✔
‐
Recove Recove
ry
ry
✔
‐40～+150
HTSOP‐J8
✔
‐
Recove Recove
ry
ry
✔
‐40～+150
HTSOP‐J8
Overr‐Voltage
Proteection
Operating
Temperature
(℃)
Exterrnally
Syncchronizable
Adju
ustable Soft
Startt
Syncchronous
Rectiifier
Lightt‐Load
Efficiiency
Overr‐Current
Proteection
Part No.
Thermal Protection
Output
Current
(A)
Power Good
Input
Voltage
Maximum
Rating
((V))
Description
40
2.5
7.0～36
(VIN×0.0855)～(VIN×0.7)
(VIN×0.0855)≧ 1.0
30
3
7.0～26
(VIN×0.143)～(VIN×0.7)
(VIN×0.143)≧ 1.0
0.57
Current
‐
‐
‐
✔
✔
Recove Recove
ry
ry
✔
‐40～+85
HTSOP‐J8
40
3
7 0～36
7.0～36
(VIN×0.06)～(VIN×0.8)
(VIN×0.06)≧ 1.0
03
0.3
Current
‐
‐
‐
✔
‐
Recove Recove
ry
ry
✔
‐40～+150
40～+150
HTSOP J8
HTSOP‐J8
BD9702CP‐V5
36
3
8.0～35
1.0～(VIN‐3.0)
0.11
Voltage
‐
‐
‐
‐
‐
Recove Recove
ry
ry
‐
‐40～+85
TO220CP‐V5
BD9874CP‐V5
36
3
8.0～35
1.0～(0.8×(VIN‐I O×RON)
0.11
Voltage
‐
‐
‐
‐
‐
Recove Recove
ry
ry
‐
‐40～+85
TO220CP‐V5
BD95513MUV
30
3
4.5～28
0.7～5.0
0.2～1.0
H Reg
3
✔
‐
✔
✔
✔
Latch
Recove
ry
✔
Output Discharge
‐10～+100
VQFN032V5050
BD95514MUV
30
4
4.5～28
0.7～5.0
0.2～1.0
H Reg
3
✔
‐
✔
✔
✔
Latch
Recove
ry
✔
Output Discharge
‐10～+100
VQFN032V5050
BD9E301EFJ‐LB
Under
BD9E302EFJ
Planning
BD9E303EFJ LB
☆ BD9E303EFJ‐LB
☆ Under Development
DC/DC Converters Selection Guide
www.rohm.com
29
Dual‐Output
Switching
Frequency
(MHz)
Control
Mode
Over‐‐Voltage
Proteection
Output Voltage
(V)
Therm
mal Protection
Input
Voltage
Range
(V)
Exterrnally
Synch
hronizable
Adjusstable Soft
Start
Synch
hronous
Rectiffier
Light‐‐Load
Efficieency
Over‐‐Current
Proteection
Part No.
Output
Current
(A)
Poweer Good
Features
Input
Number Voltage
of
Maximum
Channels
Rating
(V)
Description
Operating
Temperature
(℃)
Package
BD91501MUV
2
7
Io1 : 0.4
Io2 : 0.3
2.55～5.5
Vo1 : 2.55
Vo2 : 1.80
1.65
Current
‐
‐
‐
✔
✔
Latch
Recove
ry
‐
100% Duty
‐30～+105
VQFN016V3030
BD9151MUV
2
7
Io1 : 0.4
Io2 : 0.8
2.8～5.5
Vo1 : 1.8
Vo2 : 1.2
1
Current
‐
‐
‐
✔
✔
Latch
Recove
ry
‐
Voltage Detector,
High‐side gate controller
‐40～+85
VQFN020V4040
BD9150MUV
2
7
Io1 : 1.5
IIo2 : 1.5
2 15
4.75～5.5
Vo1 : 3.3
Vo2 : 0.8～2.5
V
2 08 25
1.5
Current
‐
‐
‐
✔
✔
Latch
Recove
ry
‐
‐40～+85
VQFN020V4040
Q
BD9152MUV
2
7
Io1 : 1.5
Io2 : 1.5
4.5～5.5
Vo1 : 3.3
Vo2 : 0.8～2.5
1
Current
‐
‐
‐
✔
✔
Latch
Recove
ry
‐
‐40～+85
VQFN020V4040
BD9153MUV
2
7
Io1 : 1.5
Io2 : 1.5
4.5～5.5
Vo1 : 1.8～3.3
Vo2 : 0.8～2.5
1
Voltage
‐
‐
‐
✔
✔
Latch
Recove
ry
‐
‐40～+85
VQFN024V4040
8.0～26
Vo1 : 5.0
Vo2 : 0.8～4.0
1.5～2.5
H Reg
‐
‐
‐
✔
✔
Recove Recove
ry
ry
‐
‐40～+85
HTSOP‐J8
‐
‐
‐
✔
✔
Latch
Recove
ry
‐
‐40～+105
VQFN024V4040
‐
‐
‐
✔
‐
Latch
Recove
Latch
ry
‐20～+100
VQFN032V5050
BD93291EFJ
2
30
Io1 : 2.5
Io2 : 1.5
BD91362MUV
2
7
Io1 : 3.0
Io2 : 1.0
2.7～5.5
Vo1 : 1.0～3.3
Vo2 : 1.0～3.3
1
Current
BD95830MUV
2
15.1
Io1 : 3.0
Io2 : 3.0
7.5～15
Vo1 : 0.8～5.5
Vo2 : 0.8～5.5
0.4～0.8
H Reg
DC/DC Converters Selection Guide
www.rohm.com
3
3
LDO Controller,
Voltage Detector
2
8 bit Voltage setting by I C I/F
30
DC/DC Switching Regulators Boost / Buck‐Boost / SEPIC and Inverting Converters Boost / Buck‐Boost / SEPIC and Inverting Converters
Input
Voltage
(V)
Output
Voltage
(V)
Switching
Frequency
(kHz)
Control
Mode
Boost
Buck‐B
SEPIC
Inverting
Soft Start
Input
Pass th
hrough
UVLO
BU33DV5G
1
10
1.75～4.5
3.3
100
Current
✔
‐
‐
‐
✔
‐
‐
‐
✔
Recove
ry
✔
SSOP5
BD1603NUV
1
175 / 190
2.7～5.5
4.5 / 5.0
642 / 238
Chargepump
‐
✔
‐
‐
‐
‐
‐
‐
‐
Recove
ryy
✔
VSON010V3030
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
200
2.5～5.5
Vo1 : ‐9.0～‐1.0
Vo2 : VIN ～ 18
1600
Current
✔
‐
‐
✔
‐
‐
✔
‐
✔
Latch
✔
UCSP50L1
(1.8×1.5)
Part No.
DC/DC Converters Selection Guide
www.rohm.com
Over‐C
Current
Protecttion
Switch
Current
Limit
(mA)
Synchrronous
Rectifieer
Light‐LLoad
Efficien
ncy
Number
of
Channels
Boost
Thermaal Protection
Features
Package
(mm)
31
DC/DC Switching Regulators Controllers (External Switch)
Buck Controllers
Switching
Frequency
(MHz)
Control
Mode
3
Over‐Voltage
Protection
Output Voltage
(V)
Thermal Protection
Supply
Voltage
(V)
Externally
Synchronizable
Adjustable Soft
Start
Synchronous
Rectifier
Light‐Load
Efficiency
Over‐Current
Protection
Part No.
Input
Voltage
Range
(V)
Power Good
Features
Input
Number Voltage
Maximum
of
Rating
Channels
(V)
Description
Recove Recove
Tracking feature
ry
ry
Operating
Temperature
(℃)
Package
‐10～+85
VQFN020V4040
‐40～+105
VQFN020V4040
BD95601MUV‐LB
1
28
4.5～25
4.5～5.5
0.75～2.0
0.2～0.5
H Reg
✔
‐
✔
✔
✔
BD9611MUV
1
60
10～56
‐
1.0～(VIN×0.8)
0.05～0.5
Voltage
‐
✔
✔
✔
‐
Recove Recove
ry
ry
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
BD9845FV
1
36
3.6～35
‐
1.0～VIN *1
0.1～1.5
Voltage
‐
‐
✔
‐
‐
Recove Recove
ry
ry
‐40～+85
SSOP‐B14
BD95602MUV‐LB
2
30
5.5～28
‐
1.0～5.5
0.15～0.5
H Reg
✔
‐
✔
✔
✔
‐20～+85
VQFN032V5050
BD9848FV
2
36
3.6～35
‐
1.0～VIN *1
0.1～1.5
Voltage
‐
‐
✔
‐
‐
‐40～+105
SSOP‐B20
3
Latch
Latch
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.
B t / Buck‐Boost Controllers
Boost
/ B k B t C t ll
Package
(mm)
BD8303MUV
1
15
2.7～14
1.8～12
200～1000
Voltage
‐
✔
‐
‐
✔
‐
✔
Latch
Recove
ry
VQFN016V3030
BD9306AFVM
1
20
4.2～18
VIN～(VIN/0.3)
100～800
Voltage
✔
‐
‐
‐
✔
‐
‐
Latch
Recove
ryy
MSOP8
BD9851EFV
2
20
4.0～18
1.0～*1
10～3000
Voltage
✔
‐
✔
✔
‐
✔
‐
Latch
Recove
ry
HTSSOP‐B20
BA9743AFV
2
36
3.6～35
2.505～*1
10～800
Voltage
✔
‐
✔
✔
‐
✔
‐
Latch
Recove
ry
SSOP‐B16
BA9744FV
2
36
2.5～35
1.222～*1
10～800
Voltage
✔
‐
✔
✔
‐
✔
‐
Latch
Recove
ry
SSOP‐B16
BA9741F
2
36
3.6～35
2.5～*1
10～800
Voltage
✔
‐
✔
✔
‐
✔
‐
Latch
Recove
R
ry
SOP16
BA9741FS
2
36
3.6～35
2.5～*1
10～800
Voltage
✔
‐
✔
✔
‐
✔
‐
Latch
Recove
ry
SSOP‐A16
Thermal
Protection
Enable
Control
Mode
Buck
Switching
Frequency
(kHz)
Inverting
Output
Voltage
(V)
ost
Buck‐Boo
Input
Voltage
(V)
Boost
Part No.
Adjustable
Soft Startt
Synchron
nous
Rectifier
Short Circcuit
Protection
Features
Input
Number Voltage
of
Maximum
Channels
Rating
(V)
*1 Restrictions depend on input/output voltage conditions.
DC/DC Converters Selection Guide
www.rohm.com
32
Power MOSFETs
30V VDSS Dual Type
New
New
30V VDSS Single Type
Package
(mm)
PD
(W)
Part No.
HUML3030L10
3.0×3.0 t=0.6
2.0
HS8K1
Polarity
(ch)
VDSS (V)
30
HSOP8
6.0×5.0 t=1.0
HS8K22
☆
HS8K23
ID
(A)
11
RDS(ON) typ (mΩ)
VGS=4.5V
VGS=10V
11.9
9.1
Qg(nC)
VGS=4.5V
Drive Voltage
(V)
Package
(mm)
4.5
HUML2020L8
2.0×2.0 t=0.6
3.3
N+N
30
10
14.7
11.2
2.7
30
20
4.7
3.6
7.8
N+N
PD
(W)
20
2.0
RDS(ON) typ (mΩ)
Qg(nC)
VGS=4.5V
Drive Voltage
(V)
8.7
4.8
4.5
17 6
17.6
13 5
13.5
28
2.8
45
4.5
7
23.0
16.4
2.3
4.5
30
18
4.3
3.3
12
4.5
N
30
15
6.2
4.7
7
4.5
RQ3E120GN
N
30
12
9.1
6.7
4.8
4.5
RQ3E100GN
N
30
10
12.0
8.9
3.9
4.5
RQ3E080GN
N
30
8
17.5
12.9
2.8
4.5
RS1E350GN
N
30
35
15
1.5
12
1.2
29
45
4.5
RS1E320GN
N
30
32
1.8
1.4
20
4.5
RS1E300GN
N
30
30
2.2
1.7
19
4.5
RS1E280GN
N
30
28
2.6
2.0
17
4.5
RS1E240GN
N
30
24
3.3
2.6
11
4.5
RS1E200GN
N
30
20
4.7
3.6
8
4.5
RS1E170GN
N
30
17
6.7
5.1
6
4.5
RS1E150GN
N
30
15
8.8
6.7
5
4.5
RS1E130GN
N
30
13
11.7
8.9
4
4.5
Polarity
(ch)
VDSS (V)
RF4E110GN
N
30
RF4E080GN
N
RF4E070GN
Part No.
ID
(A)
VGS=4.5V
VGS=10V
11
11.7
30
8
N
30
RQ3E180GN
N
RQ3E150GN
4.5
30
12
9.1
6.7
4.8
30
24
3.3
2.6
11.2
30
12
9.1
6.7
4.8
30
32
2.4
1.9
16.9
N+N
4.5
HSMT8
3.3×3.3 t=0.8
2.0
☆
HS8K24
HS8S36
New
N+N
N
N+SBD
45
4.5
30
12
9.1
6.7
4.8
30
32
2.3
2.0
47.0
30
12
9.1
6.7
4.8
2.0
4.5
☆ Under Development
HSOP8
6.0×5.0 t=1.0
3.0
DC/DC Converters Selection Guide
www.rohm.com
33
Isolated DC/DC Power Supplies
Isolated Flyback Converters
Features
mal
Therm
Protection
Package
Over‐Current Protection
Control
Mode
Operating
Junction
Temperature
Range
(℃)
UVLO
O
Switching Frequency (kHz)
Light‐Load Efficieency
Input Voltage Range
(V)
Soft SStart
Switch
Max. Input Current
Voltage
Limit
(V)
(A)
Enable
Output
Power
(W)
☆ BD7F100HFN‐LB
1W at VIN 5.0V
5W at VIN 24V
45
1.25
3.0 to 40
400
Adaptive
on‐time
✔
✔
✔
✔
Feed
back
Feed
back
‐40 to +125
HSON8
Planned BD7F200HFN‐LB
2W at VIN 5.0V
10W at VIN 24V
45
1.75
3.0 to 40
400
Adaptive
on‐time
✔
✔
✔
✔
Feed
back
Feed
back
‐40 to +125
HSON8
Planned BD7J100HFN‐LB
5W at VIN 48V
100
1.0
6.0 to 80
400
Adaptive
on‐time
✔
✔
✔
✔
Feed
back
Feed
back
‐40 to +125
HSON8
Part No.
☆ Under Development
DC/DC Converters Selection Guide
www.rohm.com
34
Linear Regulators Low Dropout (LDO) Regulators
Low Dropout (LDO) Regulators
O
Output Voltage
Maximum
Rating
Input Voltage
Range
Output
Current
7V
( I )
2.3V～5.5V
0.5A
( A5 )
BD00IA5WEFJ
Adjustable
‐
( 00 )
( 00
‐
1.0V
BD10IA5WEFJ
( 10 )
‐
1.2V
BD12IA5WEFJ
( 12 )
‐
1.25V
‐
( 1C )
BD15IA5WEFJ
1.5V
‐
( 15 )
‐
BD18IA5WEFJ
1.8V
‐
( 18 )
‐
BD25IA5WEFJ
2.5V
‐
( 25 )
( 25
‐
2.6V
‐
( 26 )
BD30IA5WEFJ
3.0V
‐
( 30 )
‐
BD33IA5WEFJ
‐
3 3V
3.3V
( 33 )
‐
‐
5.0V
‐
( 50 )
‐
5.4V
‐
( 54 )
‐
6.0V
‐
( 60 )
‐
7.0V
‐
( 70 )
‐
8.0V
‐
( 80 )
‐
9.0V
‐
( 90 )
‐
10 0V
10.0V
‐
( J0 )
‐
12.0V
‐
( J2 )
‐
15.0V
‐
( J5 )
‐
DC/DC Converters Selection Guide
2.4V～5.5V
00は2.3V～5.5V
1.0A
( C0 )
BD00IC0WEFJ
BD00IC0WHFV
‐
BD10IC0WEFJ
BD10IC0WHFV
BD12IC0WEFJ
BD12IC0WHFV
BD1CIC0WHFV
BD15IC0WEFJ
BD15IC0WHFV
‐
BD18IC0WEFJ
BD18IC0WHFV
‐
BD25IC0WEFJ
BD25IC0WHFV
‐
BD26IC0WHFV
BD30IC0WEFJ
BD30IC0WHFV
‐
BD33IC0WEFJ
BD33IC0WHFV
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
10V
( H )
15V
( G )
4.5V～8.0V
4.5V～14.0V
0.3A
( A3 )
BD00HA3WEFJ
‐
‐
‐
‐
‐
‐
‐
‐
BD15HA3WEFJ
‐
‐
BD18HA3WEFJ
‐
‐
BD25HA3WEFJ
‐
‐
‐
‐
BD30HA3WEFJ
‐
‐
BD33HA3WEFJ
‐
‐
‐
BD50HA3WEFJ
‐
‐
‐
BD60HA3WEFJ
0.5A
( A5 )
BD00HA5WEFJ
‐
‐
‐
‐
‐
‐
‐
‐
BD15HA5WEFJ
‐
‐
BD18HA5WEFJ
‐
‐
BD25HA5WEFJ
‐
‐
‐
‐
BD30HA5WEFJ
‐
‐
BD33HA5WEFJ
‐
‐
‐
BD50HA5WEFJ
1.0A
( C0 )
BD00HC0WEFJ
‐
‐
‐
‐
‐
‐
‐
‐
BD15HC0WEFJ
‐
‐
BD18HC0WEFJ
‐
‐
BD25HC0WEFJ
‐
‐
‐
‐
BD30HC0WEFJ
‐
‐
BD33HC0WEFJ
‐
‐
‐
BD50HC0WEFJ
1.5A
( C5 )
BD00HC5WEFJ
‐
‐
‐
‐
‐
‐
‐
‐
BD15HC5WEFJ
‐
‐
BD18HC5WEFJ
‐
‐
BD25HC5WEFJ
‐
‐
‐
‐
BD30HC5WEFJ
‐
‐
BD33HC5WEFJ
‐
‐
‐
BD50HC5WEFJ
‐
‐
BD60HA5WEFJ
‐
‐
BD60HC0WEFJ
‐
‐
BD60HC5WEFJ
BD70HA3WEFJ
BD70HA5WEFJ
BD70HC0WEFJ
BD70HC5WEFJ
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
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0.3A
( A3 )
BD00GA3WEFJ
‐
BD00GA3WNUX
‐
‐
‐
‐
‐
‐
BD15GA3WEFJ
‐
BD15GA3WNUX
BD18GA3WEFJ
‐
BD18GA3WNUX
BD25GA3WEFJ
‐
BD25GA3WNUX
‐
‐
BD30GA3WEFJ
‐
BD30GA3WNUX
BD33GA3WEFJ
‐
BD33GA3WNUX
‐
BD50GA3WEFJ
BD50GA3WNUX
‐
‐
BD60GA3WEFJ
BD60GA3WNUX
BD70GA3WEFJ
BD70GA3WNUX
BD80GA3WEFJ
BD80GA3WNUX
BD90GA3WEFJ
BD90GA3WNUX
BDJ0GA3WEFJ
BDJ0GA3WNUX
BDJ2GA3WEFJ
BDJ2GA3WNUX
‐
‐
0.5A
( A5 )
BD00GA5WEFJ
‐
‐
‐
‐
‐
‐
‐
‐
BD15GA5WEFJ
‐
‐
BD18GA5WEFJ
‐
‐
BD25GA5WEFJ
‐
‐
‐
‐
BD30GA5WEFJ
‐
‐
BD33GA5WEFJ
‐
‐
‐
BD50GA5WEFJ
‐
‐
‐
BD60GA5WEFJ
‐
BD70GA5WEFJ
‐
BD80GA5WEFJ
‐
BD90GA5WEFJ
‐
BDJ0GA5WEFJ
‐
BDJ2GA5WEFJ
‐
‐
‐
30V
( F )
(Vo+3)V～25V
1.0A
( C0 )
BD00GC0WEFJ
‐
‐
‐
‐
‐
‐
‐
‐
BD15GC0WEFJ
‐
‐
BD18GC0WEFJ
‐
‐
BD25GC0WEFJ
‐
‐
‐
‐
BD30GC0WEFJ
‐
‐
BD33GC0WEFJ
‐
‐
‐
BD50GC0WEFJ
‐
‐
‐
BD60GC0WEFJ
‐
BD70GC0WEFJ
‐
BD80GC0WEFJ
‐
BD90GC0WEFJ
‐
BDJ0GC0WEFJ
‐
BDJ2GC0WEFJ
‐
‐
‐
0.1A
( A1 )
BD00FA1WEFJ
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
BD33FA1FP3
‐
‐
BD54FA1FP3
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
(Vo+1)V～26.5V
1.0A
( C0 )
BD00FC0WEFJ
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
BD30FC0WEFJ
‐
‐
BD33FC0WEFJ
‐
‐
‐
BD50FC0WEFJ
‐
‐
‐
BD60FC0WEFJ
‐
BD70FC0WEFJ
‐
BD80FC0WEFJ
‐
BD90FC0WEFJ
‐
BDJ0FC0WEFJ
‐
BDJ2FC0WEFJ
‐
BDJ5FC0WEFJ
‐
Package
HTSOP‐J8
HVSOF6
VSON008X2030
HTSOP‐J8
HVSOF6
HTSOP‐J8
HVSOF6
HVSOF6
HTSOP‐J8
HTSOP
J8
HVSOF6
VSON008X2030
HTSOP‐J8
HVSOF6
VSON008X2030
HTSOP‐J8
HVSOF6
VSON008X2030
HVSOF6
HTSOP‐J8
HVSOF6
VSON008X2030
HTSOP‐J8
HVSOF6
VSON008X2030
SOT89‐3
HTSOP‐J8
VSON008X2030
SOT89‐3
HTSOP‐J8
VSON008X2030
HTSOP‐J8
VSON008X2030
HTSOP‐J8
VSON008X2030
HTSOP‐J8
VSON008X2030
HTSOP J8
HTSOP‐J8
VSON008X2030
HTSOP‐J8
VSON008X2030
HTSOP‐J8
35
CMOS Low Dropout (LDO) Regulators
Type
BUxxUA3WNVX
BU
UA3WNVX
Series
Input
Voltage
(V)
1.7～5.5
Output
Current
(mA)
300
DC/DC Converters Selection Guide
Output
Voltage
(V)
Part No.
1.00
BU10UA3WNVX
1.05
BU1AUA3WNVX
1.10
BU11UA3WNVX
1.15
BU1BUA3WNVX
1.20
BU12UA3WNVX
1.25
BU1CUA3WNVX
1.30
BU13UA3WNVX
1.50
BU15UA3WNVX
1 80
1.80
BU18UA3WNVX
1.85
BU1JUA3WNVX
1.90
BU19UA3WNVX
2.00
BU20UA3WNVX
2.05
BU2AUA3WNVX
2.10
BU21UA3WNVX
2 20
2.20
BU22UA3WNVX
2.30
BU23UA3WNVX
2.50
BU25UA3WNVX
2.60
BU26UA3WNVX
2.70
BU27UA3WNVX
2.75
BU2HUA3WNVX
2 80
2.80
BU28UA3WNVX
2.85
BU2JUA3WNVX
2.90
BU29UA3WNVX
2.95
BU2KUA3WNVX
3.00
BU30UA3WNVX
3.10
BU31UA3WNVX
3.20
BU32UA3WNVX
3.30
BU33UA3WNVX
3.40
BU34UA3WNVX
3.70
BU37UA3WNVX
Output
Voltage
Precision
I/O Dropout
Voltage
(mV)
Ripple
Rejection
(dB)
Load
Regulation
(mV)
Circuit
Current
(μA)
Output
Short
Current
(mA)
Input
Capacitor
(μF)
Output
Capacitor
(μF)
Shutdown
Switch
70
25
(Io=0.01mA
to 300mA)
50
150
1
1
✔
Over
Thermal Discharge
Current
Protection Function
Protection
Package
470
((Io=300mA))
350
(Io=300mA)
±25mV
250
(Io=300mA)
220
(Io=300mA)
±1%
www.rohm.com
✔
✔
✔
SSON004X1010
200
(Io=300mA)
36
Linear Regulators for DDR SDRAM
DDR Termination Regulators
F
Features
VTT
Voltage
Precision
(mV)
Softt Start
Pow
wer Good
UVLLO
DDR
R1 ( 2.5V/2.6V)
DDR
R2 (1.8V)
DDR
R2L (1.5V)
LPDD
DR2 (1.2V)
DDR
R3 (1.5V)
DDR
R3L (1.35V)
DDR
R3U (1.25V)
BD3533F
BD3533FVM
BD3533HFN
2.7～5.5
1.0～5.5
1.0～2.75
0.75～1.25
±30
±1.0
±20
✔
✔
‐
✔
‐
Recov
ery
✔
✔
‐
‐
‐
‐
‐
BD3531F
4.5～5.5
1.0～5.5
1.0～2.75
0.75～1.25
±30
±1.5
±10
✔
‐
‐
✔
‐
Recov
ery
✔
✔
‐
‐
‐
‐
‐
BD3532F
4 3～5 5
4.3～5.5
1 0～5 5
1.0～5.5
1 0～2 75
1.0～2.75
0 75～1 25
0.75～1.25
±30
±3 0
±3.0
±20
✔
✔
‐
✔
‐
Recov
ery
✔
✔
‐
‐
‐
‐
BD3537F
4.75～5.25
1.746～1.854
‐
0.6～1.6
±30
±1.8
‐
‐
✔
‐
✔
‐
Recov
ery
✔
✔
‐
‐
‐
BD3538F
BD3538FVM
BD3538HFN
2.7～5.5
1.0～5.5
1.0～2.75
0.75～1.25
±30
±1.0
±20
✔
✔
‐
✔
‐
Recov
ery
✔
✔
‐
‐
BD3539FVM
BD3539NUX
2.7～5.5
1.0～5.5
1.0～2.75
0.75～1.25
±15
±1.0
±25
✔
✔
‐
✔
✔
Recov
ery
✔
✔
✔
BD35390FJ
2.7～5.5
1.0～5.5
1.0～2.75
0.75～1.25
±15
±1.0
‐
✔
✔
✔
✔
✔
Recov
ery
✔
✔
✔
Recov
ery
✔
✔
New BD35395FJ‐M
2.7～5.5
1.0～5.5
DC/DC Converters Selection Guide
1.0～2.75
0.5～1.375
VTT
VREF
Output Output
Current Current
(A)
(mA)
±13.5
www.rohm.com
±1.0
‐
✔
✔
✔
✔
Operating
Temperature
(℃)
Package
DDR
R4 (1.2V)
VTT
Output
Voltage
(V)
LPDD
DR3 (1.2V)
VDDQ
Reference
Input
Voltage
(V)
Output Ceramic
Capaacitors
Therrmal
Prottection
Part No.
VTT_IN
Termination
Input
Voltage
(V)
Enab
ble
DDR (VDDQ)
VCC
Input
Voltage
(V)
‐
‐
‐20～+100
SOP8
MSOP8
HSON8
‐
‐
‐10～+100
SOP8
‐
‐
‐
‐40～+100
40～+100
SOP8
‐
‐
‐
‐
‐30～+100
SOP8
‐
‐
‐
‐
‐
‐40～+105
SOP8
MSOP8
HSON8
‐
✔
‐
‐
‐
‐
‐30～+100
MSOP8
VSON008X2030
✔
‐
✔
‐
‐
‐
‐
‐30～+100
SOP‐J8
✔
‐
✔
✔
‐
‐
‐
‐40～+105
SOP‐J8
37
DC/DC Converters Selection Guide
www.rohm.com
38
AEK57‐1‐284 ©2015 ROHM Co., Ltd. All rights reserved.
Application engineer Div.