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
three band gap tolerance: ±0.2%、±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 85℃
Typical Application
? Charger
? Voltage Adapter
? Switching Power Supply
? Graphic Card
? Precision Voltage Reference
Package
? 3-pin SOT23、TO92、SOT89-3
