Manufacturer BCDSEMI
Part Number AZ431LANTR-E1
Cathode Voltage 20V
Cathode Current Range (Continuous) -100 ~ 100mA
Reference Input Current Range 10mA
Junction Temperature 150°C
Storage Temperature Range -65 ~ 150°C


General Description

The AZ431L series ICs are low voltage three-terminal adjustable 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, motherboard and other adjustable regulators.

The output voltage can be set to any value between 1.24V and 18V with two external resistors.

The AZ431L precision reference is offered in two voltage tolerance: 0.5% and 1.0%.

These ICs are available in 4 packages: TO-92 (bulk or ammo packing), SOT-23, SOT-23-5, SOT-89-3.


  • Wide Programmable Precise Output Voltage from 1.24V to 18V
  • High Stability under Capacitive Load
  • Low Temperature Deviation: 3mV Typical
  • Low Equivalent Full-range Temperature Coefficient: 20PPM/oC Typical
  • Low Dynamic Output Resistance: 0.05Ω Typical
  • High Sink Current Capacity from 0.1mA to 100mA
  • Low Output Noise
  • Wide Operating Range of -40 to 125oC


  • Graphic Card
  • PC Motherboard
  • Voltage Adapter
  • Switching Power Supply
  • Charger

Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only , and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability.

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