Datasheet > G5654

G5654

更新时间： 2024-11-16 01:25:27

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描述
2A Step-down DC/DC

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数据手册

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G5654 数据手册

Global Mixed-mode Technology Inc.

2A Step-down DC/DC

General Description

G5654

Features

2A Output Current

The G5654 is a monolithic step-down switch mode

regulator with a built in internal power MOSFET. It

achieves 2A continuous output current over a wide

input supply range with excellent load and line regula-

tion.

0.18Ω Internal Power MOSFET Switch

Stable with Low ESR Output Ceramic Capaci-

tors

Up to 95% Efficiency

25µA Shutdown Mode

Current mode operation provides fast transient re-

sponse and eases loop stabilization.

Fixed 380kHz Frequency

Thermal Shutdown

Cycle-by-Cycle Over Current Protection

Wide 4.75V to 20V Operating Input Range

Output Adjustable from 1.22V to 12V

Available in SOP-8 Package

Fault condition protection includes cycle-by-cycle cur-

rent limiting, output short circuit protection and thermal

shutdown. In shutdown mode the regulator draws

25µA of supply current. Programmable soft-start over-

writes the internal soft-start for various requirement of

output power up ramp and minimizes the inrush supply

current at initial startup.

Applications

PC Monitors

The G5654 requires a minimum number of readily

available standard external components. It is available

in a SOP-8 package.

DSL Modems

Distributed Power Systems

Pre-Regulator for Linear Regulators

Ordering Information

ORDER

NUMBER

G5654P11U

G5654P12U

TEMP.

RANGE

PACKAGE

(Green)

SOP-8

MARKING

G5654

-40°C to +85°C

G5654A

SOP-8

Note: P1: SOP-8

1: Bonding Code

U : Tape & Reel

Pin Configuration

Typical Application Circuit

G5654P11U

G5654

10µH

V_IN

4.75V~20V

V_OUT

3.3V/2A

SS34

10µF

OFF

22µF

R1/28kΩ

MLCC

COMP

GND

C_C

R_C

R2/16kΩ

C_C2

optional

COMP

0.1µF

GND

SOP-8

G5654

10µH

V_IN

4.75V~20V

V_OUT

3.3V/2A

0.1µF

G5654P12U

10µF

OFF

SS34 R1/28kΩ

COMP

GND

100µF/220µF

Electrolytic

COMP

C_C

R_C

R2/16kΩ

0.1µF

C_C2

GND

V_OUT= 1.22V x

(

1 +

)

SOP-8

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 0.5

Aug 03, 2009

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