LP2957IT

更新时间： 2024-11-21 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
14页	381K
描述
5V Low-Dropout Regulator for P Applications

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LP2957IT 数据手册

June 1998

LP2957/LP2957A

5V Low-Dropout Regulator for µP Applications

General Description

Features

n 5V output within 1.4% over temperature (A grade)

n Easily programmed for snap-on/snap-off output

n Guaranteed 250 mA output current

The LP2957 is a 5V micropower voltage regulator with elec-

tronic shutdown, error flag, very low quiescent current

(150 µA typical at 1 mA load), and very low dropout voltage

(470 mV typical at 250 mA load current).

n Extremely low quiescent current

Output can be wired for snap-on/snap-off operation to elimi-

nate transition voltage states where µP operation may be un-

predictable.

n Low Input-Output voltage required for regulation

n Reverse battery protection

n Extremely tight line and load regulation

n Very low temperature coefficient

n Current and thermal limiting

n Error flag signals when output is out of regulation

Output crowbar (50 mA typical pull-down current) will bring

down the output quickly when the regulator snaps off or

when the shutdown function is activated.

The part has tight line and load regulation (0.04% typical)

and low output temperature coefficient (20 ppm/˚C typical).

Applications

n High-efficiency linear regulator

n Battery-powered regulator

The accuracy of the 5V output is guaranteed at room tem-

perature and over the full operating temperature range.

The LP2957 is available in the five-lead TO-220 and TO-263

packages.

Package Outline

Bent, Staggered Leads

5-Lead TO-220 (T)

DS011340-16

Top View

Order Number LP2957AIT or LP2957IT

See NS Package Number T05D

Plastic Surface Mount Package

5-Lead TO-263 (S)

DS011340-17

Top View

DS011340-18

Side View

Order Number LP2957AIS or LP2957IS

See NS Package Number TS5B

DS011340

www.national.com

12 3 4 5 6 7...14

中文翻译

下载PDF

与LP2957IT相关器件

型号	品牌	获取价格	描述	数据表
LP2960	TI	获取价格	LP2960 Adjustable Micropower 0.5A Low-Dropout Regulators
LP2960	NSC	获取价格	Adjustable Micropower 0.5A Low-Dropout Regulators
LP2960AIM-3.3	TI	获取价格	LP2960 Adjustable Micropower 0.5A Low-Dropout Regulators
LP2960AIM-3.3	NSC	获取价格	Adjustable Micropower 0.5A Low-Dropout Regulators
LP2960AIM-5.0	NSC	获取价格	Adjustable Micropower 0.5A Low-Dropout Regulators
LP2960AIM-5.0	TI	获取价格	LP2960 Adjustable Micropower 0.5A Low-Dropout Regulators
LP2960AIM-5.0/NOPB	NSC	获取价格	IC VREG FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.8 V DROPOUT, PDSO16, ROHS COMPLIANT, SM
LP2960AIM-5.0/NOPB	TI	获取价格	Adjustable Micropower 0.5A Low-Dropout Regulators 16-SOIC -40 to 125
LP2960AIMX-3.3	NSC	获取价格	IC VREG 3.254 V-3.346 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.8 V DROPOUT, PDSO16, 0.150 IN
LP2960AIMX-3.3	TI	获取价格	LP2960 Adjustable Micropower 0.5A Low-Dropout Regulators