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TSZ02201-0J3J0AJ00130-1-2

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ROHM Co., Ltd. All rights reserved.

1/18

02.MAR.2012 Rev.001

TSZ22111･14･001

Datasheet

2.7V to 5.5V, 2.0A 1ch

Synchronous Buck Converter integrated FET

BD9130NV

●General Description

ROHM’s high efficiency step-down switching regulator

BD9130NV is a power supply designed to produce a

low voltage including 1 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

■

Offers fast transient response with current mode

PWM control system.

■

Offers highly efficiency for all load range with

synchronous rectifier (Nch/Pch FET)

and SLLM

■

Incorporates soft-start function.

■

Incorporates thermal protection and ULVO

functions.

■

Incorporates short-current protection circuit with

time delay function.

■

Incorporates shutdown function

●Key Specifications

 Input voltage range:

2.7V to 5.5V

 Output voltage range:

1.0V to 2.5V

 Output current:

2.0A (Max.)

 Switching frequency:

1MHz(Typ.)

 Pch FET ON resistance:

200mΩ(Typ.)

 Nch FET ON resistance:

160mΩ(Typ.)

 Standby current:

0μA (Typ.)

 Operating temperature range:

-25℃ to +105℃

●Package

SON008V5060:

5.00mm x 6.00mm x 1.00mm

●Applications

Power supply for LSI including DSP, Micro computer

and ASIC

●Typical Application Circuit

Fig.1 Typical Application Circuit

○Product structure：Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays.