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Adjustable/2.5 V, 1% Tolerance Shunt Regulator
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DATA SHEET
www.onsemi.com Programmable Shunt
Regulator 3 KA431S, KA431SA,
KA431SL 1 2 MF
1. Cathode
2. Ref
3. Anode MF2
1. Ref
2. Cathode
3. Anode SOT23−FL3L
CASE 318AB DEVICE MARKING INFORMATION Description The KA431S / KA431SA / KA431SL are three−terminal adjustable
regulator series with a guaranteed thermal stability over the operating
temperature range. The output voltage can be set to any value between
VREF (approximately 2.5 V) and 36 V with two external resistors.
These devices have a typical dynamic output impedance of 0.2 W.
Active output circuitry provides a sharp turn−on characteristic,
making these devices excellent replacement for zener diodes in many
applications. See general marking information in the device
marking section on page 2 of this data sheet. ORDERING INFORMATION
See detailed ordering and shipping information on
page 6 of this data sheet. Features •
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