Adjustable Precision Shunt Voltage
Regulator
LM431A LM431B
Adjustable Precision Shunt
Regulator
General Description
• LM431A and LM431B are three terminal adjustable precision shunt
regulators With guaranteed thermal stability over a full operation temperature range.
• The output Voltage of these ICs can be set to any value between VREF (Typical 2.
50V) and the corresponding maximum cathode voltage (36V) with two external resistors.
• These devices feature the sharp turn-on characteristics, low temperature coefficient and low output impedance, making them ideal substitute for Zener Diode in many applications such as switching power supply, charger and other adjustable
regulators.
TO-92 (...