Datasheet > G5131-37T21U

G5131-37T21U

更新时间： 2025-09-05 23:04:47

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描述
PSM Step-up DC/DC Converter

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数据手册

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G5131-37T21U 数据手册

Global Mixed-mode Technology Inc.

G5130/G5131

PSM Step-up DC/DC Converter

Features

General Description

The G5130/G5131 boost converter is designed for use

1~4 Cell Alkaline Battery Operating Range

Output Voltage Range: 2.5V~5.0V in 0.1V In-

crements

Minimum External Component (L, D, C)

100KHz Max. Oscillation Frequency

75% Duty Ratio

of main power source on portable equipments.

It consist of an oscillator, PSM control logic circuit, an

embedded power MOS (LX switch), accurate voltage

reference, error amplifier, feedback resistors, and LX

protection circuit.

Up to 80% Efficiency

±2% High Output Voltage Accuracy

< 100ppm/°C Temperature Coefficient

SOT-89 and SOT-23-5 Small Packages

Only 3 external components (includes 1 inductor, 1

diode and 1 capacitor) are needed to construct the

power application.

For larger output power application, G5131 can be

used to drive an external NPN device for more input

current.

Applications

Power Source for Portable Equipments

Handheld Computers, Palmtops

Digital Still Cameras, Camcorders

Cellular Phones, Pagers

Portable Multimedia Players

Pin Configuration

Typical Application Circuit

1N5819

G5130

27µH~120µH

Battery

V_OUT

2.5V~5.0V

Step 0.1V

Top View

VOUT

GND

V_IN

22µF~100µF

SOT-89

1N5819

27µH~120µH

Battery

V_IN

G5131

V_OUT

2.5V~5.0V

Step 0.1V

EXT

VOUT

GND

22µF~100µF

SOT-23-5

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 0.3 Preliminary

Jun 15, 2005

12 3 4 5 6 7...10

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