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BD9152MUV fiches techniques PDF

ROHM Semiconductor - Output 1.5A or Less High Efficiency Step-down Switching Regulator

Numéro de référence BD9152MUV
Description Output 1.5A or Less High Efficiency Step-down Switching Regulator
Fabricant ROHM Semiconductor 
Logo ROHM Semiconductor 





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BD9152MUV fiche technique
Single-chip Type with Built-in FET Switching Regulator Series
Output 1.5A or Less High Efficiency
Step-down Switching Regulator
with Built-in Power MOSFET
BD9152MUV
No.10027ECT14
Description
ROHM’s high efficiency dual step-down switching regulator BD9152MUV is a power supply designed to produce a low
voltage including 3.3,0.8 volts from 5.5/4.5 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 (Pch/Nch FET)
and SLLMTM (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
Application
Power supply for LSI including DSP, Micro computer and ASIC
Absolute Maximum Rating (Ta=25)
Parameter
Vcc Voltage
EN Voltage
SW Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
Maximum Junction Temperature
Symbol
VCC
VEN1
VEN2
VSW1
VSW2
Pd1
Pd2
Pd3
Pd4
Topr
Tstg
Tjmax
Limit
-0.3+7 *1
-0.3+7
-0.3+7
-0.3+7
-0.3+7
0.34*2
0.70 *3
1.21 *4
3.56*5
-40+85
-55+150
+150
Unit
V
V
V
V
V
W
W
W
W
*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
Vcc Voltage
EN Voltage
Output Voltage range
SW Average Output Current
*6 Pd and ASO should not be exceeded.
Symbol
VCC
VEN1
VEN2
VOUT2
ISW1
ISW2
Limit
Min. Typ. Max.
4.5 5.0 5.5
0 - 5.5
0 - 5.5
0.8 - 2.5
- - 1.5*6
- - 1.5*6
Unit
V
V
V
V
A
A
www.rohm.com
c 2010 ROHM Co., Ltd. All rights reserved.
1/16
2010.04 - Rev.C

PagesPages 19
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