Description

The AP431WA is a 3-terminal adjustable precision shunt regulator used in electronic devices. It is designed to provide stable output voltage over a wide temperature range, making it suitable for various applications. This device can be easily adjusted to any output voltage level greater than 2.495V by using external resistors. With a typical output impedance of 0.2Ω, the AP431WA offers improved performance compared to traditional Zener diodes.

Specifications and features

- Precision reference voltage: AP431WA: 2.495V ± 1%, AP431A: 2.495V ± 0.5%

- Sink current capability: 200mA

- Minimum cathode current for regulation: 300μA

- Equivalent full-range temperature coefficient: 30 ppm/°C

- Fast turn-on response

- Low dynamic output impedance: 0.2Ω

- Programmable output voltage up to 36V

- Low output noise

- Packages available: TO92, SOT89, SOT23, SOT25, and SOP

Application Scenarios

The AP431WA can be used in various electronic devices and applications where precision voltage regulation is required. It is suitable for use in power supplies, battery charging circuits, voltage monitors, and other similar applications.

Comparison

- Guaranteed temperature stability

- Adjustable output voltage

- Improved performance compared to Zener diodes

- None mentioned