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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/擄C Typical
鈥?Temperature Compensated for Operation Over Full Rated
Operating Temperature Range
鈥?Low Output Noise Voltage
鈥?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 V
REF
(approximately 2.5 volts) and 36
volts with two external resistors. These devices have a
typical dynamic output impedance of 0.2鈩?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. 1.0.3
漏2002 Fairchild Semiconductor Corporation