KA431A
Adjustable/2.5V, 1% Tolerance Shunt Regulator

Features
• Programmable Output Voltage to 36 Volts
• Low Dynamic Output Impedance 0.20 Typical
DescriptionThe KA431/KA431A/KA431L are three-terminal adjustableregulator series with a guaranteed thermal stability overapplicable temperature ranges. The output voltage may beset to any value between VREF (approximately 2.5 volts)and 36 volts with two external resistors These deviceshave a typical dynamic output impedance of 0.2W activeoutput circuitry provides a very sharp turn oncharacteristic, making these devices excellentreplacement for zener diodes in many applications.
May 2007
• Sink Current Capability of 1.0 to 100mA
• Equivalent Full-Range Temperature Coefficient of
• Temperature Compensated for Operation Over
50ppm/°C Typical
• Low Output Noise Voltage
• Fast Turn-on Response
1
Full Rated Operating Temperature Range

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