Datasheet > BD9139MUV_12

BD9139MUV_12

更新时间： 2024-11-04 08:51:55

品牌	Logo	应用领域
罗姆 - ROHM		转换器
页数	文件大小	规格书
22页	808K
描述
2.7V to 5.5V, 3A 1ch Synchronous Buck Converter integrated FET

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BD9139MUV_12 数据手册

Datasheet

2.7V to 5.5V, 3A 1ch

Synchronous Buck Converter integrated FET

BD9139MUV

●General Description

●Key Specifications

ROHM’s high efficiency step-down switching regulator

BD9139MUV is a power supply designed to produce a

low voltage including 0.8 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.

 Input voltage range:

 Output voltage range:

 Output current:

 Switching frequency:

 High side FET ON resistance:

 Low side FET ON resistance:

 Standby current:

2.7V to 5.5V

0.8V to 3.3V

3.0A (Max.)

1MHz(Typ.)

100mΩ(Typ.)

80mΩ(Typ.)

0µA (Typ.)

 Operating temperature range:

-40℃ to +105℃

●Features

 Offers fast transient response with current mode

PWM control system.

 Offers highly efficiency for all load range with

●Package

VQFN016V3030:

(Typ.)

(Max.)

3.00mm x 3.00mm x 1.00mm

synchronous

rectifier

(Nch/Nch

FET)

and

SLLM(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

●Applications

Power supply for LSI including DSP, Micro computer and ASIC

●Typical Application Circuit

VQFN016V3030

Cin

VCC

PVCC

VCC

CBST

VOUT

ADJ

ITH

VOUT

GND,PGND

RITH

CITH

ESR

Fig. 1 Typical application circuit

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

www.rohm.com

TSZ22111･14･001

TSZ02201-0J3J0AJ00170-1-2

02.MAR.2012 Rev.001

1/20

12 3 4 5 6 7...22

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