BD9104FVM-TR_09 データシートの表示（PDF） - ROHM Semiconductor

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BD9104FVM-TR_09

Output 1.5A or Less High Efficiency Step-down Switching Regulators with Built-in Power MOSFET

ROHM Semiconductor 

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 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

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

www.rohm.com

© 2009 ROHM Co., Ltd. All rights reserved.

1/17

2009.05 - Rev.A

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