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Global Mixed-mode Technology Inc.

G5103

Micro-power Step-Up DC/DC Converters in SOT-23-5

Features

Configurable Output Voltage Up to 16V

20碌A(chǔ) Quiescent Current

<1碌A(chǔ) Shutdown Current

<1碌A(chǔ) Shutdown Pin Current

Supply Range from 2.5V to 6.5V

Low V

DS(on)

: 250mV (I

SW

=300mA)

Tiny SOT-23-5 Package

General Description

The G5103 boost converter is designed for small/ me-

dium size LCD panel of high bias voltage.

Due to a typical 20碌A(chǔ) quiescent current and 2.5V~

6.5V 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 350mA current limit, 500ns fixed

minimum off-time and tiny SOT23-5 package facilitates

the use of smaller inductor and other surface-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

STN/TFT LCD Bias

Personal Digital Assistants (PDAs)

Handheld Computers

Digital Still Cameras

Cellular Phones

WebPad

White LED Driver

Local 3V to 5V Conversion

Ordering Information

ORDER

NUMBER

G5103T11U

ORDER NUMBER

(Pb Free)

G5103T11Uf

MARKING

5103x

TEMP. RANGE

-40擄C ~ +85擄C

PACKAGE

SOT-23-5

Pin Configuration

Typical Application Circuit

V

IN

2.5V to 4.2V

SW

1

5

VCC

VCC

10碌H

16V

12mA

SW

1M

GND 2

G5103

G963

4

SHDN

4.7碌F

G5103

SHDN

GND

80.6k

FB

1碌F

FB 3

SOT-23-5

Ver: 1.1

Sep 20, 2004

TEL: 886-3-5788833

http://www.gmt.com.tw

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