BD9120HFN-E2 データシートの表示（PDF） - ROHM Semiconductor

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BD9120HFN-E2

Synchronous Buck Converter Integrated FET

ROHM Semiconductor 

Synchronous Buck Converter

Integrated FET

BD9106FVM BD9107FVM BD9109FVM BD9110NV BD9120HFN

●General Description

ROHM’s high efficiency step-down switching regulators

(BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,B

D9120HFN) are the power supply designed to produce

a low voltage including 1 volts from 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

 Offers fast transient response with current mode

PWM control system.

 Offers highly efficiency for all load range with

synchronous rectifier (Nch/Pch FET)

and SLLMTM (Simple Light Load Mode)

Incorporates soft-start function.

 Incorporates thermal protection and ULVO

functions.

 Incorporates short-current protection circuit with

time delay function.

 Incorporates shutdown function

●Application

Power supply for LSI including DSP, Micro computer

and ASIC

●Key Specifications

 Input voltage range

BD9120HFN:

BD9106FVM,BD9107FVM:

BD9109FVM,BD9110NV:

 Output voltage range

BD9109FVM:

BD9120HFN:

BD9107FVM:

BD9106FVM,BD9110NV:

 Output current

BD9106FVM, BD9109FVM,

BD9120HFN:

BD9107FVM:

BD9110NV:

 Switching frequency:

 FET ON resistance

BD9110NV:

BD9106FVM,BD9107FVM:

BD9120HFN,BD9109FVM:

 Standby current:

 Operating temperature range

BD9110NV:

BD9120HFN,BD9106FVM:

BD9107FVM,BD9109FVM:

2.7V to 4.5V

4.0V to 5.5V

4.5V to 5.5V

3.30V ± 2%

1.0V to 1.5V

1.0V to 1.8V

1.0V to 2.5V

0.8A(Max.)

1.2A(Max.)

2.0A(Max.)

1MHz(Typ.)

Pch(Typ.) / Nch(Typ.)

200mΩ / 150mΩ

350mΩ / 250mΩ

350mΩ / 250mΩ

0μA(Typ.)

-25℃ to +105℃

-25℃ to +85℃

-25℃ to +85℃

●Typical Application Circuit

●Packages

HSON8

MSOP8

SON008V5060

(Typ.) (Typ.) (Max.)

2.90mm x 3.00mm x 0.60mm

2.90mm x 4.00mm x 0.90mm

5.00mm x 6.00mm x 1.00mm

VCC

Cin

L

EN

VCC,PVCC SW

VOUT

VOUT

VOUT

ESR

RO

ITH

GND,PGND

CO

RITH

CITH

Fig.1 Typical Application Circuit

HSON8

MSOP8

SON008V5060

○Product structure：Silicon monolithic integrated circuit

www.rohm.com

©2012 ROHM Co., Ltd. All rights reserved.

TSZ22111･14･001

○This product is not designed protection against radioactive rays.

1/40

TSZ02201-0J3J0AJ00090-1-2

02.MAR.2012 Rev.001

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