Datasheet > LP2960

LP2960

更新时间： 2024-09-28 22:46:59

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器
页数	文件大小	规格书
17页	455K
描述
Adjustable Micropower 0.5A Low-Dropout Regulators

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LP2960 数据手册

April 1999

LP2960

Adjustable Micropower 0.5A Low-Dropout Regulators

General Description

Features

n Output voltage adjusts from 1.23V–29V

n Guaranteed 500 mA output current

n 5V and 3.3V versions available

n 16-pin DIP and 16-pin SO packages

n Low dropout voltage

The LP2960 is a micropower voltage regulator with very low

dropout voltage (12 mV typical at 1 mA load and 470 mV

typical at 500 mA load) and very low quiescent current

(450 µA typical at 1 mA load).

The LP2960 is ideally suited for battery-powered systems:

the quiescent current increases only slightly at dropout,

which prolongs battery life.

n Low quiescent current

n Tight line and load regulation

n Low temperature coefficient

n Current limiting and thermal protection

n Logic-level shutdown

n Can be wired for snap-ON and snap-OFF

n Reverse battery protection

The LP2960 retains all the desirable characteristics of the

LP2953, and offers increased output current.

The error flag goes low any time the output drops more than

5% out of regulation.

Reverse battery protection is provided.

The LP2960 requires only 10 µF of output capacitance for

stability (5V version).

Applications

The internal voltage reference is made available for external

use, providing a low-T.C. reference with very good regulation

characteristics.

n High-efficiency linear regulator

n Regulator with under-voltage shutdown

n Low dropout battery-powered regulator

n Cellular telephones

The parts are available in 16-pin plastic DIP and 16-pin sur-

face mount packages.

Block Diagram

DS011962-1

DS011962

www.national.com

12 3 4 5 6 7...17

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