Datasheet > G5ULM2596

G5ULM2596

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
GTM		稳压器
页数	文件大小	规格书
8页	503K
描述
Simple Switcher Power converter 150kHz 3A Step-Down Voltage Regulator

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G5ULM2596 数据手册

ISSUED DATE :2005/04/15

REVISED DATE :2006/06/26B

GTM

CORPORATION

G5ULM2596

Simple Switcher Power converter 150kHz 3A Step-Down Voltage Regulator

Description

The G5ULM2596 series of regulators are monolithic integrated circuits that provide all active functions for a step-down (buck) switching

regulator, capable of driving 3A load with excellent line and load regulation. These devices are available in fixed output voltage of 3.3v, 5v,

12v and an adjustable output version. Requiring a minimum number of external components, these regulators are simple to use and

include internal frequency compensation and a fixed-frequency oscillator.

The G5ULM2596 series operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be

needed with lower frequency switching regulators. Available in a standard 5-lead TO-263 package with several different lead bend options.

A standard series if inductors are available from several different manufactures optimized for use with the G5ULM2596 series. This feature

greatly simplifies the design of switch-mode power supplies. Other feature include a guaranteed ±4% to tolerance on output voltage under

specified input voltages and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring 80uA

standby current. Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature

shutdown for complete protection under fault conditions.

Features

3.3V, 5.0V, 12V and adjustable output versions

Adjustable version output voltage range , 1.2V to 37V ±4% max over line and load conditions

Guaranteed 3A output current

Input voltage range up to 40V

Efficient pre-regulator for linear regulators

Requires only 4 external components

150kHz fixed frequency internal oscillator

TTL shutdown capability, low power standby mode

High efficiency

Uses readily available standard inductors

Thermal shutdown and current limit protection

Applications

Simple high-efficiency step-down (buck) regulator

On-card switching regulators

Positive to negative converter

Package Dimensions

Millimeter

REF.

Min.

Max.

4.80

0.91

0.30

0.5

Min.

1.25

Max.

1.45

4.40

0.66

0.00

0.36

2.29

9.80

ꢀ

1.27 REF.

8.6

9.0

1.70 REF.

14.6 15.8

0˚ 8˚

2.79

10.4

Typical Application (Fixed Output Voltage Version)

12V

Unregulated

DC Input

G5ULM2596-5.0

1N5824

680

220

G5ULM2596

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