LM431CIM/

更新时间： 2024-09-27 03:44:07

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
13页	870K
描述
Adjustable Precision Zener Shunt Regulator

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数据手册

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LM431CIM/ 数据手册

March 2005

LM431

Adjustable Precision Zener Shunt Regulator

General Description

Features

n Average temperature coefficient 50 ppm/˚C

The LM431 is a 3-terminal adjustable shunt regulator with

guaranteed temperature stability over the entire temperature

range of operation. It is now available in a chip sized pack-

age (4-Bump micro SMD) using National’s micro SMD pack-

age technology. The output voltage may be set at any level

greater than 2.5V (V_REF) up to 36V merely by selecting two

external resistors that act as a voltage divided network. Due

to the sharp turn-on characteristics this device is an excel-

lent replacement for many zener diode applications.

n Temperature compensated for operation over the full

temperature range

n Programmable output voltage

n Fast turn-on response

n Low output noise

n LM431 in micro SMD package

n See AN-1112 for micro SMD considerations

Connection Diagrams

TO-92: Plastic Package

SOT-23: 3-Lead Small Outline

01005528

Top View

01005501

Top View

4-Bump micro SMD

SO-8: 8-Pin Surface Mount

01005554

Top View

01005502

(bump side down)

Top view

Note: *NC = Not internally connected. Must be electrically isolated from the rest of the circuit for the microSMD package.

DS010055

www.national.com

12 3 4 5 6 7...13

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