BD9132MUV Datasheet, PDF (1/17 Pages) Rohm – Output 2A or More High Efficiency Step-down Switching Regulator with Built-in Power MOSFET

TECHNICAL NOTE
Single-chip Type with built-in FET Switching Regulator Series
Output 2A or More High Efficiency
Step-down Switching Regulator
with Built-in Power MOSFET
BD9132MUV
●Description
ROHM’s high efficiency step-down switching regulator BD9132MUV is a power supply designed to produce a low voltage
including 0.8 volts from 5.5/3.3 volts power supply line. Offers high efficiency with our original pulse skip control technology
and synchronous rectifier. Employs a current mode control system to provide faster transient response to sudden change
in load.
●Features
1) Offers fast transient response with current mode PWM control system.
2) Offers highly efficiency for all load range with synchronous rectifier (Nch/Nch FET) and SLLM (Simple Light Load
Mode)
3) Incorporates soft-start function.
4) Incorporates thermal protection and ULVO functions.
5) Incorporates short-current protection circuit with time delay function.
6) Incorporates shutdown function Icc=0μA(Typ.)
7) Employs small surface mount package : VQFN020V4040
●Use
Power supply for LSI including DSP, Micro computer and ASIC
●Absolute Maximum Rating (Ta=25℃)
Parameter
VCC Voltage
PVCC Voltage
Symbol
Limits
Unit
BD9132MUV
VCC
-0.3～+7 *¹
V
PVCC
-0.3～+7 *¹
V
BST Voltage
VBST
-0.3～+13
V
BST_SW Voltage
VBST-SW
-0.3～+7
V
EN Voltage
VEN
-0.3～+7
V
SW,ITH Voltage
Power Dissipation 1
Power Dissipation 2
Power Dissipation 3
Power Dissipation 4
VSW, VITH
-0.3～+7
V
Pd1
0.34 *²
W
Pd2
0.70 *³
W
Pd3
1.21 *⁴
W
Pd4
3.56 *⁵
W
Operating temperature range
Topr
-40～+105
℃
Storage temperature range
Tstg
-55～+150
℃
Maximum junction temperature
Tj
+150
℃
＊1 Pd should not be exceeded.
＊2 IC only
＊3 1-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, occupied area by copper foil : 10.29mm²
＊4 4-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, occupied area by copper foil : 10.29mm² , in each layers
＊5 4-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, occupied area by copper foil : 5505mm², in each layers
●Operating Conditions (Ta=-40～+105℃)
Parameter
Symbol
BD9132MUV
Min.
Typ.
Max.
Unit
Power Supply Voltage
VCC
2.7
3.3
5.5
V
PVCC
2.7
3.3
5.5
V
EN Voltage
VEN
0
-
5.5
V
Output voltage Setting Range
VOUT
0.8
-
3.3*⁶
V
SW average output current
ISW
-
-
3.0*⁷
A
＊6 In case set output voltage 1.6V or more, VccMin = Vout+1.2V.
＊7 Pd should not be exceeded.
Jul. 2008