Datasheet Diodes ZR431L


1.24V Adjustable Precision Shunt Regulator


Datasheet ZR431L
PDF, 634 Kb, Language: en, File uploaded: Jul 21, 2020, Pages: 9
Adjustable Precision Shunt Regulator
Extract from the document


Detailed Description

The ZR431L is a three terminal adjustable shunt regulator offering excellent temperature stability and output current handling capability up to 25mA.

The output voltage may be set to any chosen voltage between 1.24 and 10 volts by selection of two external divider resistors. The devices can be used as a replacement for zener diodes in many applications requiring an improvement in zener performance. The ZR431L is particularly used in the feedback control loop of switch mode power supplies. In this application the device 1.24 volt reference enables the generation of low voltage supplies, typically 3.3 volts or 3 volts.




Parameters / ModelsZR431LF01TAZR431LF02TA
Accuracy2.5, 1 %2.5, 1 %
Automotive Compliant PPAPNoNo
Maximum Input Voltage10 V10 V
Maximum Slope Resistance2 Ω2 Ω
Minimum Cathode Current for Regulation Typ50 µA50 µA
Operating Ambient Temperature Range-40 to 85 °C-40 to 85 °C
Qualified to AECQ10xNoNo
Reference Voltage1.24 V1.24 V
Sink Current25 mA25 mA

Model Line

Series: ZR431L (2)

Manufacturer's Classification

  • Analog > Standard Linear Products > Voltage References > Shunt Regulators > 1.24V Reference Voltage Parts

1-4 Layer PCBs $2