TL431 SOT 23-3

The TL431 , A & B
integrated circuits are three''terminal
programmable shunt regulator diodes. These monolithic IC voltage
references operate as a low temperature coefficient zener which is
programmable from Vref to 36 V with two external resistors. These
devices exhibit a wide operating current range of 1.0 mA to 100 mA
with a typical dynamic impedance of 0.22 . The characteristics of
these references make them excellent replacements for zener diodes in
many applications such as digital voltmeters, power supplies, and op
amp circuitry. The 2.5 V reference makes it convenient to obtain a
stable reference from 5.0 V logic supplies, and since the TL431A, B
operates as a shunt regulator, it can be used as either a positive or
negative voltage reference.
Features
'' Programmable Output Voltage to 36 V
'' Voltage Reference Tolerance: 0.4%, Typ @ 25C (TL431B)
'' Low Dynamic Output Impedance, 0.22 Typical
'' Sink Current Capability of 1.0 mA to 100 mA
'' Equivalent Full''Range Temperature Coefficient of 50 ppm/C Typical
'' Temperature Compensated for Operation over Full Rated Operating
Temperature Range
'' Low Output Noise Voltage
'' NCV/SCV Prefixes for Automotive and Other Applications
Requiring Unique Site and Control Change Requirements;
AEC''Q100 Qualified and PPAP Capable
'' These Devices are Pb''Free, Halogen Free/BFR Free and are RoHS
Compliant