BD9102FVM_09 Datasheet, PDF (1/18 Pages) Rohm – Output 1.5A or Less High Efficiency Step-down Switching Regulators with Built-in Power MOSFET

Single-chip built-in FET type Switching Regulator Series
Output 1.5A or Less High Efficiency
Step-down Switching Regulators
with Built-in Power MOSFET
BD9102FVM, BD9104FVM, BD9106FVM
No.09027EAT34
●Description
ROHM’s high efficiency step-down switching regulator (BD9102FVM, BD9104FVM, BD9106FVM) is a power supply
designed to produce a low voltage including 1.24 volts from 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 (Nch/Pch FET)
and SLLM^TM (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
7) Employs small surface mount package MSOP8
●Use
Power supply for HDD, power supply for portable electronic devices like PDA, and power supply for LSI including CPU and
ASIC
●Lineup
Parameter
Vcc voltage
Output voltage
Output current
UVLO Threshold voltage
Short-current protection with time delay function
Soft start function
Standby current
Operating temperature range
Package
BD9102FVM
4.0～5.5V
1.24V±2%
0.8A Max.
2.7V Typ.
built-in
built-in
0μA Typ.
-25～+85℃
MSOP8
BD9104FVM
4.5～5.5V
3.30V±2%
0.9A Max.
4.1V Typ.
built-in
built-in
0μA Typ.
-25～+85℃
MSOP8
BD9106FVM
4.0～5.5V
Adjustable(1.0～2.5V)
0.8A Max.
3.4V Typ.
built-in
built-in
0μA Typ.
-25～+85℃
MSOP8
●Absolute Maximum Rating (Ta=25℃)
VCC voltage
PVCC voltage
Parameter
Symbol
Limits
Unit
VCC
-0.3～+7 ^*1
V
PVCC
-0.3～+7 ^*1
V
EN voltage
EN
-0.3～+7
V
SW,ITH voltage
Power dissipation 1
Power dissipation 2
SW,ITH
-0.3～+7
V
Pd1
387.5^*2
mW
Pd2
587.4^*3
mW
Operating temperature range
Topr
-25～+85
℃
Storage temperature range
Tstg
-55～+150
℃
Maximum junction temperature
Tjmax
+150
℃
*1 Pd should not be exceeded.
*2 Derating in done 3.1mW/℃ for temperatures above Ta=25℃.
*3 Derating in done 4.7mW/℃ for temperatures above Ta=25℃,Mounted on 70mm×70mm×1.6mm Glass Epoxy PCB
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2009.05 - Rev.A