LM431

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SNVS020G – MAY 2000 – REVISED APRIL 2013

LM431 Adjustable Precision Zener Shunt Regulator

Check for Samples: LM431

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FEATURES

DESCRIPTION

The LM431 is a 3-terminal adjustable shunt regulator

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Average Temperature Coefficient 50 ppm/°C

with ensured temperature stability over the entire

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Temperature Compensated for Operation Over

temperature range of operation. The output voltage

the Full Temperature Range

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Programmable Output Voltage

36V merely by selecting two external resistors that

act as a voltage divided network. Due to the sharp

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Fast Turn-On Response

turn-on characteristics this device is an excellent

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Low Output Noise

replacement for many zener diode applications.

Connection Diagram

Figure 1. TO-92: Plastic Package

Figure 2. SOT-23: 3-Lead Small Outline

Top View

Top View

A.

Note: NC = Not internally connected.

Figure 3. SOIC: 8-Pin Surface Mount

Top view

Symbol and Functional Diagrams

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PRODUCTION DATA information is current as of publication date.

Copyright © 2000–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.