General Description

The AZ431 series ICs are three-terminal adjustable shunt regulators with guaranteed thermal stability over a full operation range. These ICs feature sharp turn-on characteristics, low temperature coefficient and low output impedance, which make them ideal substitutes for Zener diodes in applications such as switching power supply, charger and other adjustable regulators.

Features

· Programmable Precise Output Voltage from 2.5V

to 36V or 18V

· Very Accurate Reference Voltage: 0.15% Typical

· High Stability under Capacitive Load

· Low Temperature Deviation: 4.5mV Typical

· Low Equivalent Full-range Temperature Coeffi

cient with 20PPM/

o

C Typical

· Low Dynamic Output Resistance: 0.2ΩTypical

· Sink Current Capacity from 1mA to 100 mA

· Low Output Noise

· Wide Operating Range of -40 to 125°C

Applications

· Charger

· Voltage Adapter

· Switching Power Supply

· Graphic Card

· Precision Voltage Reference