LP2960 datasheet(1/17 Pages) NSC

Numer części	LP2960

Szczegółowy opis	Adjustable Micropower 0.5A Low-Dropout Regulators

PDF	17 Pages

Scroll/Zoom	100%

Producent	NSC [National Semiconductor (TI)]

Strona internetowa	http://www.national.com

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LP2960

Adjustable Micropower 0.5A Low-Dropout Regulators

General Description

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.

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).

The internal voltage reference is made available for external

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

characteristics.

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

face mount packages.

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

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

Applications

n High-efficiency linear regulator

n Regulator with under-voltage shutdown

n Low dropout battery-powered regulator

n Cellular telephones

Block Diagram

DS011962-1

April 1999

DS011962

www.national.com

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LP2960 Arkusz danych(PDF) 1 Page - National Semiconductor (TI)

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