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431CCM Datasheet

Adjustable Precision Zener Shunt Regulator

Manufacturer: National Semiconductor (now Texas Instruments)

431CCM Overview

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 package (4-Bump micro SMD) using National’s micro SMD package technology. The output voltage may be set at any level greater than 2.5V (VREF) up to 36V merely by selecting two external resistors that act as a voltage divided network.

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