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LM431

Part Number	LM431
Manufacturer	Fairchild Semiconductor
Description	Programmable Shunt Regulator
Published	Mar 22, 2005
Detailed Description	www.fairchildsemi.com LM431SA/LM431SB/LM431SC Programmable Shunt Regulator Features • • • • Programmable Output Voltage...
Datasheet	LM431 PDF File

Overview

www.
fairchildsemi.
com LM431SA/LM431SB/LM431SC Programmable Shunt Regulator Features • • • • Programmable Output Voltage to 36 Volts Low Dynamic Output Impedance 0.
20 Typical Sink Current Capability of 1.
0 to 100mA Equivalent Full-Range Temperature Coefficient of 50ppm/°C Typical • Temperature Compensated for Operation Over Full Rated Operating Temperature Range • Low Output Noise Voltage • Fast Turn-on Response Description The LM431SA/LM431SB/LM431SC are three terminal output adjustable regulators with thermal stability over operating temperature range.
The output voltage can be set any value between VREF (approximately 2.
5 volts) and 36 volts with two external resistors.
These devices have a typical dynamic output impedance of 0.
2Ω Active output circuit provides a sharp turn-on characteristic, making these devices excellent replacement for Zener Diodes in many applications.
SOT-89 1 1.
Ref 2.
Anode 3.
Cathode SOT-23F 3 1 2 1.
Cathode 2.
Ref 3.
Anode Internal Block Diagram Rev...

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