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microBUCK® Highly Integrated
Synchronous Buck Regulators
FEATURES
APPLICATIONS
• Compact scalable highly integrated
solutions
• Output and over voltage protection
• > 93 % peak efficiency
• Easy to use and highly flexible CAD
tool aids in design simulations to
select right part
• Programmable soft-start and
soft-shutdown
• Integrated Power MOSFETs
• Desktop and server computers
• Notebook computers
• Digital HDTV and digital consumer
applications
• Networking and telecommunication
equipment
• LCD TV, STB, and other consumer
applications
• Embedded applications
• Point of load power supplies
RESOURCES
• microBUCK product family datasheets: http://www.vishay.com/power-ics/integratedmicrobuck/
• PowerCAD Simulation Design Tool: http://www.vishay.com/power-ics/powercad-list/
• For technical questions, contact PowerICtechsupport@vishay.com
One of the World’s Largest Manufacturers of
Discrete Semiconductors and Passive Components
PRODUCT OVERVIEW
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VMN-PL0427-1210
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62-2012
microBUCK® PRODUCT FAMILY
SiC401 A/B
Operating Conditions
Protection Features
SiC402 A/B
SiC403 A/B
SiC413
SiC414/424
Package
MLPQ55-32L
SO-8
MLPQ44-28
Package Size
5 x 5 x 0.9 (mm)
6.2 x 5 x 0.9 (mm)
4 x4 x 0.9 (mm)
4.75 V to 26 V
3 V to 28 V
VIN
3 V to 17 V
3 V to 28 V
3 V to 28 V
VOUT
0.6 V to 5.5 V
0.6 V to 13.2 V
0.75 V to 5.25 V
Operating Frequency
200 kHz to 1 MHz
500 kHz
200 kHz to 1 MHz
4A
6A
IOUT
15 A
10 A
6A
Power save mode
•
•
•
Peak efficiency
95 %
95 %
95 %
Power good
•
•
•
Under voltage lockout
•
•
•
•
•
Output over-voltage
protection
•
•
•
•
•
Output over-current
protection
•
•
•
•
•
Short circuit protection
•
•
•
Over temperature protection
•
•
•
•
•
Internal
Internal
Soft-start and
soft-shutdown
Features
Power ICs - Compact Scalable Highly Integrated Solutions
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Programmable
•
93 %
95 %
•
Integrated configurable
LDO with bypass logic
•
•
•
Ouptput ceramic capacitor
(no ESR requirement)
•
•
•
Pseudo-fixed frequency
adaptive on-time control
•
•
•
•
1 % internal reference
voltage
•
•
•
•
Integrated bootstrap diode
•
•
•
PRODUCT OVERVIEW
2/12
•
•
•
•
•
VMN-PL0427-1210
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microBUCK ® PRODUCT FAMILY
19
62-2012
microBUCK® PRODUCT FAMILY (continued...)
Protection Features
Operating Conditions
SiP12107
SiP12108
SiP12109
Package
MLP33-16L
Package Size
3 x 3 x 0.9 (mm)
VIN
2.8 V to 5.5 V
VOUT
0.6 V to 4.6 V
SiP12110
4.5 V to 16 V
0.6 V to 5.5 V
0.6 V to 5.5 V
Operating Frequency
200 kHz to 4 MHz
200 kHz to 4 MHz
IOUT
3A
6A
4A
6A
Power save mode
•
•
•
•
Peak efficiency
95 %
95 %
95 %
95 %
Power good
•
•
•
•
Under voltage lockout
•
•
•
•
Output over-voltage
protection
•
•
•
•
Output over-current
protection
•
•
•
•
Short circuit protection
•
•
•
•
Over temperature protection
•
•
•
•
Soft-start and
soft-shutdown
Features
Power ICs - Compact Scalable Highly Integrated Solutions
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400 kHz to 1.5 MHz 400 kHz to 1.5 MHz
Internal
Ouptput ceramic capacitor
(no ESR requirement)
•
•
•
•
Pseudo-fixed frequency
adaptive on-time control
•
•
•
•
1 % internal reference
voltage
•
•
•
•
•
•
Integrated bootstrap diode
PRODUCT OVERVIEW
3/12
VMN-PL0427-1210
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V I S H AY I N T E R T E C H N O L O G Y, I N C .
19
62-2012
SIC401A/B, SIC402A/B, and SIC403A/B
FUNCTIONAL BLOCK DIAGRAM
AGND
6, 9-11, PAD 2
29
26
PGOOD
VDD
EN/PSV
VIN
4, 30,
PAD 1
VDD
Reference
Control and Status
VIN
BST
DL
8
SS
7
1
Soft Start
+
FB
On-Time
Generator
-
Gate Drive
Control
2
3
VDD
PGND
15 to 22
Zero Cross
Detector
VOUT
VDD
VDD
Y
ILIM
Valley1-Limit
Bypass Comparator
27
VIN
A
B
MUX
LDO
5
FBL
32
ENL
Input Voltage
5 V/div.
10 ms/div.
Vin= 12 V, Vout = 3.3 V, 300 kHz
100
LX
13, 23 to 25,
28, PAD 3
FB Comparator
TON
31
90
80
70
60
Ef f iciency (%)
Power ICs - Compact Scalable Highly Integrated Solutions
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SiC403A/B
6A
50
SiC402A/B
10 A
Output Voltage
500 mV/div.
10 ms/div.
SiC401A/B
15 A
Power Good Signal
5 V/div.
10 ms/div.
40
30
LX Switching Node
10 V/div.
10 ms/div.
20
10
0
-10
-20
1
3
5
7
9
11
13
15
Iout (A)
Output Voltage
500 mV/div.
5 ms/div.
Output Current
5 A/div.
5 ms/div.
LX Switching Node
10 V/div. 5 ms/div.
Power Good Signal
5 V/div. 5 ms/div.
PRODUCT OVERVIEW
4/12
VMN-PL0427-1210
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SIC401A/B, SIC402A/B, and SIC403A/B (continued...)
Output Current
2 A/div.
5 µs/div.
Output Current
2 A/div.
5 µs/div.
Output Voltage
50 mV/div.
5 µs/div.
AC Coupling
Output Voltage
50 mV/div. 5 µs/div.
AC Coupling
Transient response in continuous conduction mode
(0.2 A - 6 A)
(VIN = 12 V. VOUT = 1 V. FSW = 500 kHz)
Transient response in continuous conduction mode
(6 A - 0.2 A)
(VIN = 12 V. VOUT = 1 V. FSW = 500 kHz)
TYPICAL APPLICATION CIRCUIT
3.3 V
EN/PSV (Tri-State)
PGOOD
LX
ILIM
PGOOD
LX
AGND
TON
ENL
EN\PSV
LDO_EN
VOUT
32 31 30 29 28 27 26 25
FB
VOUT
VDD
AGND
FBL
VIN
VIN
1
24
2
AGND
3
5
21
LX
PAD 2
SS 7
BST
22
PAD 3
4
6
20
19
VIN
18
17
VOUT
PGND
PGND
PGND
PGND
16
PGND
PGND
15
PGND
13
NC 14
NC 12
LX
11
10
VIN
9
8
VIN
LX
LX
23
PGND
PAD 1
VIN
Power ICs - Compact Scalable Highly Integrated Solutions
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SiC403B (MLP 5 x 5-32L)
PRODUCT OVERVIEW
5/12
VMN-PL0427-1210
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V I S H AY I N T E R T E C H N O L O G Y, I N C .
Power ICs - Compact Scalable Highly Integrated Solutions
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POWER ICs
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19
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SIC401A/B, SIC402A/B, and SIC403A/B (continued...)
File Vertical Timebase Trigger DisplayCursors Measure Math Analysis Utilities Help
File Vertical Timebase Trigger DisplayCursors Measure Math Analysis Utilities Help
Step Load
Step Load
VOUT
VOUT
Transient response IOUT 5 A
PRODUCT OVERVIEW
Transient response IOUT 10 A
6/12
VMN-PL0427-1210
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62-2012
SIC414
SiC414CD typical application circuit
VIN = 12 V, VOUT = 3.3 V, 300 kHz
95
90
Efficiency (%)
Power ICs - Compact Scalable Highly Integrated Solutions
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85
80
75
70
0
1
2
3
4
5
6
7
Iout (A)
SiC414CD efficiency curve
22
2
V5V
VIN
EN/PSV
AGND
3, 26,
PAD1
5, 8-11, PAD2
25
PGD
V5V
VIN
V5V
Control and Status
Reference
BST
7
DL
Soft Start
LX
+
–
FB
1
Gate
Drive
Control
On-Line
Generator
Zero Cross
Detector
VOUT
6
Valley Limit
Bypass Comparator
VLDO
Y
B
13, 14, 16 - 19
ILIM
23
VIN
A
MUX
12, 15, 20, 21,
24 PAD3
PGND
FB Comparator
TON
27
4
V5V
LDO
28
ENL
SiC414CD block diagram
PRODUCT OVERVIEW
7/12
VMN-PL0427-1210
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SIC413
+ 12 V
VIN
VREG
To System
EN
COMP
BOOT
SiC413
Controller
FB
VOUT
VSW
To Load
GND
SiC413CB typical application circuit
VIN = 12 V, VO = 3.3 V, FS = 300 kHz
96
94
92
Efficiency (%)
Power ICs - Compact Scalable Highly Integrated Solutions
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90
88
86
84
82
SiC413
Competitor A
80
78
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
IOUT (A)
SiC413CB versus competitor efficiency
VIN
VREG
UVLO
EN
OTP
VSW
Control logic and
active dead time
OVP
VREG
PWM
GM
FB
BOOT
5.5 VREG
Shutdown
control
FOSC
Over
Current
GND
COMP
SiC413CB block diagram
PRODUCT OVERVIEW
8/12
VMN-PL0427-1210
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SIC413
SiC413CB Versus Competitor Thermals
SiC413 is 23.2 °C cooler
VIN
12 V
VOUT
3.3 V
IOUT
3.0 A
SiC413 efficiency
93 %
Competitor’s efficiency
85 %
74.3 °C
51.4 °C
— 50
SiC413 T case = 51.4 C
— 70
— 48
— 65
— 46
— 44
— 42
— 40
— 38
— 36
— 34
— 60
Competitor Tcase = 74.3 C
— 55
— 50
— 45
— 32
— 40
— 30
— 35
— 28
— 26
— 24
— 30
— 25
SiC413CB versus competitor thermals
PRODUCT OVERVIEW
9/12
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SiP12107, 3 A, 5.5 V Synchronous microBUCK® Regulator
Power ICs - Compact Scalable Highly Integrated Solutions
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SIP12107
SiP12107 Typical Application Circuit
2
7
6
AVIN
GMO
AGND
8
PGOOD
5
AUTO
3
1,16
EN
VIN
OTP
0.6 V
REFERENCE
VIN
UVLO
SOFT
START
VIN
+
+ OTA
9
+
ON-TIME
GENERATOR
VFB
-
CONTROL
LOGIC
SECTION
LX
ANTI-XCOND
CONTROL
11,12,13
VIN
PWM COMPARATOR
Isense
I-V
Converter
ZCD
PGND
RON
4
14,15
-
10
+
VOUT
0.45 V
OCP
UV Comparator
SiP12107 efficiency curve.pdf
0.72 V
PAD
-
1
10/25/12
8:31 PM
Current
Mirror
+
VFB
Isense
OV Comparator
Fig. 2 - SiP12107 Functional Block Diagram
SiP12107
Typical Block Diagram
Eff PWM 500KHZ Various Configurations
100
95
90
85
!
3.3V – 1.2V
PWM
80
75
C
M
Y
70
0
0.5
1
1.5
2
2.5
3
CM
Efficiency Curve
SiP12107 Efficiency Curve
MY
CY
CMY
K
PRODUCT OVERVIEW
10/12
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M
Y
CM
MY
CY
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POWER ICs
8:50 PM
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10/25/12
INNOVAT
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HN
SiC12109 App Circuit and Block diagram.pdf
19
62-2012
SIP12109
SiP12109 Typical Application Circuit
C
M
Y
CMY
K
CM
MY
CY
CMY
K
SiC12109 efficiency curve.pdf
1
10/25/12
8:36 PM
SiP12109 Block Diagram
SiP12109 Efficiency Curve
PRODUCT OVERVIEW
11/12
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SPECIFIC
DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
C
M
V I S H AY I N T E R T E C H N O L O G Y, I N C .
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PRODUCT OVERVIEW
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