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General Description

The AP432/432A are 3-terminal adjustable precision shunt regulators with guaranteed stable temperature over the applicable extended commercial temperature range. The output voltage may be set at any level greater than 1.24/ (VREF) up to 20V merely by selecting two external resistors that act as a voltage divider network.

? Features

- Precision reference voltage

AP432 : 1.24V ±1

AP432A : 1.24V ±0.5

- Sink current capability: 200mA.

- Minimum cathode current for regulation: 150?A

- Equivalent full-range temp coefficient: 30 ppm/oC

- Fast turn-on Response.

- Low dynamic output impedance: 0.2?

- Programmable output voltage to 20v

- Low output noise

- Packages: SOT89, SOT23, SOT25, SOP8 and TO92