ME431ATBG

General Description

The ME431 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. The ME431 voltage type is 40V. The output voltage can be set to any

value between VREF (2.5V) and the corresponding maximum cathode voltage. The ME431 precision reference

is offered in two band gap tolerance: 0.4% and 1.0%.

Features

 Programmable Precise Output Voltage from 2.5V to 36V

 Very Accurate Reference Voltage: Typical 0.15%

 High Stability under Capacitive Load

 Low Temperature Deviation: Typical 4.5mV

 Low Equivalent Full-range Temperature Coefficient with 20PPM/℃ Typical

 Low Dynamic Output Resistance: Typical 0.2Ω

 Sink Current Capacity from 1mA to 100 mA

 Low Output Noise

 Wide Operating Range of -40 to 150℃

Typical Application

 Charger

 Voltage Adapter

 Switching Power Supply

 Graphic Card 

Precision Voltage Reference

Package

 3-pin SOT23、TO92、SOT89-3