Datasheet > LP5951

LP5951

更新时间： 2024-11-23 03:51:59

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
10页	606K
描述
Micropower, 150mA Low-Dropout CMOS Voltage Regulator

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LP5951 数据手册

June 2006

LP5951

Micropower, 150mA Low-Dropout CMOS Voltage

Regulator

General Description

Features

n Excellent line transient response: 2mV typ.

n Excellent PSRR: -60dB at 1kHz typ.

n Low quiescent current of 29µA typ.

n 1.8 to 5.5V input voltage range

n Small SOT23-5 package

The LP5951 regulator is designed to meet the requirements

of portable, battery-powered systems providing a regulated

output voltage and low quiescent current. When switched to

shutdown mode via a logic signal at the Enable pin, the

power consumption is reduced to virtually zero.

The LP5951 is designed to be stable with small 1µF/1.5µF

ceramic capacitors.

n Fast turn-on time of 30µs typ.

n Typ. 1nA quiescent current in shutdown

The LP5951 also features internal protection against short-

circuit currents and over-temperature conditions.

n Guaranteed 150mA output current

n Output voltage range: 1.3V to 3.3V

Performance is specified for a -40˚C to 125˚C temperature

range.

n Logic controlled enable 0.4V/0.9V

n Good load transient response of 50mVpp typ.

n Thermal-overload and short-circuit protection

n -40˚C to +125˚C junction temperature range

The device is currently available in SOT23-5 package and

will be available in SC70-5 package soon.

The device is available in fixed output voltages in the range

of 1.3V to 3.3V. For availability, please contact your local

NSC sales office.

Applications

n General purpose

Typical Application Circuit

20136201

DS201362

www.national.com

12 3 4 5 6 7...10

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