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The AS431H is a three-terminal adjustable shunt regulator with guaranteed thermal stability over a full operation range. It features sharp turn-on characteristics, low temperature coefficient, and low output impedance, which make the AS431H an ideal substitute for Zener diodes in applications such as switching power supplies, chargers, and other adjustable regulators.
The output voltage of the AS431H can be set to any value between VREF (2.495V) and the corresponding maximum cathode voltage (36V).
The AS431H precision reference is offered in two voltage tolerances: 0.5% and 1.0%.
This IC is available in two packages: TO92 (Ammo Packing) and SOT23.
Programmable Precise Output Voltage from 2.495V to 36V
High Stability under Capacitive Load
Low Temperature Deviation: 5mV Typical
Low Equivalent Full-range Temperature Coefficient with 20PPM/°C Typical
Sink Current Capacity from 0.5mA to 100mA
Low Output Noise
Wide Operating Range of -40 to +125°C
Lead-Free Packages, Available in “Green” Molding Compound: SOT23, TO92 (Ammo Packing)