Datasheet > G5001

G5001

更新时间： 2024-04-09 19:01:14

品牌	Logo	应用领域
致新 - GMT		/
页数	文件大小	规格书
2页	101K
描述
EXT, VDD, GND, CE, FB, Voltage Mode

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G5001 数据手册

Global Mixed-mode Technology Inc.

G5001

300kHz DC-DC Step-Down PWM Controller

Features

General Description

The G5001 series are pure voltage-mode PWM

step-down DC/DC converter controllers with built-in

high speed low ON resistance drivers.

3.3V, 2.5V, 1.8V Fixed Output or Adjustable

Version

External PMOS Switch

Available in SOT-23-5 Package

Input Range 2.5V~5.5V

Output Tolerance ±2.5%

Oscillator Frequency 300KHz, ±15%

Internal Soft-Start

Large output currents are possible by using an exter-

nally connected transistor, coil, diode.

Output voltage is selectable for 1.8, 2.5V, 3.3V

(±2.5%). For other output voltages the FB version,

which has a 1V internal reference voltage, is available.

Standby Current 0.5µA (Max)

1V Reference Voltage for Adjustable Version

With built-in UVLO function, the external switch will be

forcibly switched off when used below the stipulated

voltage. An internal soft start is available and the soft

start time is set up internally.

Applications

Electronics Information Organizers

Palmtops

Cellular and portable phones

Portable Audio Systems

Various Multi-function Power Supplies

Pin Configuration

Typical Application Circuit

V_DD

C_IN

47µF

VOUT

(FB)

EXT

VDD

GND

R_FB1

C_FB

VDD

EXT

G5001

GND

G5001

T11

V_OUT

22µH

R_FB2

C_OUT

47µF

SOT-23-5

Output External Set-up Version

R_FB1

V_OUT= 1 • ( 1 +

)

R_FB2

V_DD

C_IN

47µF

VDD

EXT

VDD

EXT

G5001

T12

VOUT

G5001

GND

V_OUT

GND

22µH

C_OUT

47µF

VOUT

(FB)

SOT-23-5

Output Internal Set-up Version

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 0.7

Dec 06, 2006

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