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AP431 - ADJUSTABLE PRECISION SHUNT REGULATOR

General Description

The AP431 and AP431A are 3-terminal adjustable precision shunt regulators with guaranteed temperature stability over the applicable extended commercial temperature range.

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NOT RECOMMENDED FOR NEW DESIGN USE AS431 AP431/AP431A ADJUSTABLE PRECISION SHUNT REGULATOR Description The AP431 and AP431A are 3-terminal adjustable precision shunt regulators with guaranteed temperature stability over the applicable extended commercial temperature range. The output voltage may be set at any level greater than 2.495V (VREF) up to 36V merely by selecting two external resistors that act as a voltage divider network. These devices have a typical output impedance of 0.2Ω. Active output circuitry provides very sharp turn-on characteristics, making these devices excellent improved replacements for Zener diodes in many applications.