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LM431

Part Number	LM431
Manufacturer	National Semiconductor
Description	Adjustable Precision Zener Shunt Regulator
Published	Mar 22, 2005
Detailed Description	LM431 Adjustable Precision Zener Shunt Regulator December 1999 LM431 Adjustable Precision Zener Shunt Regulator Genera...
Datasheet	LM431 PDF File

Overview

LM431 Adjustable Precision Zener Shunt Regulator December 1999 LM431 Adjustable Precision Zener Shunt Regulator General Description 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.
Due to the sharp turn-on characteristics this device is an excellent replacement for many zener diode applications.
Features n Average temperature coefficie...

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