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Global Mixed-mode Technology Inc.

G5104

300mA Alkaline Boost DC/DC Converters in SOT-23-5

Features

Configurable Output Voltage Up to 5.5V

40碌A(chǔ) Quiescent Current

<1碌A(chǔ) Shutdown Current

<1碌A(chǔ) Shutdown Pin Current

Supply Range from 1.7V to 5.5V

Low V

DS(on)

: 120mV (I

SW

=400mA)

Tiny SOT-23-5 Package

General Description

The G5104 boost converter is designed for 3.3V/5V

powered system.

Due to a typical 40碌A(chǔ) quiescent current and 1.7V~

5.5V supply voltage range, it is suitable for battery

powered portable applications. Such as PDAs and

Handheld Computers. When the IC sets to shutdown

mode, it only consumes less than 1碌A(chǔ).

Furthermore, the 500mA current limit, 450ns fixed

minimum off-time and tiny SOT23-5 package facili-

tates the use of smaller inductor and other sur-

face-mount components to minimize the PCB size in

those space-conscious applications.

To control the IC, no other external current is needed

for the shutdown pin. It typically consumes less than

1碌A(chǔ) of full supply range.

Applications

Personal Digital Assistants (PDAs)

Handheld Computers

Digital Still Cameras

Cellular Phones

WebPad

Local 3V to 5V Conversion

Ordering Information

ORDER

NUMBER

G5104T11U

Note:T1: SOT-23-5

U: Tape & Reel

ORDER NUMBER

(Pb free)

G5104T1Uf

MARKING

5104X

TEMP. RANGE

-40擄C ~ +85擄C

PACKAGE

SOT-23-5

Pin Configuration

Typical Application Circuit

4.7碌H

V

IN

3V

SW

1

5

VCC

VCC

SW

1M

GND 2

10pF

(option)

5V

300mA

G5104

G963

47碌F

4

SHDN

G5104

SHDN

GND

FB

316k

47碌F

FB 3

SOT-23-5

Ver: 1.2

Mar 01, 2005

TEL: 886-3-5788833

http://www.gmt.com.tw

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