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ZR431L - ADJUSTABLE PRECISION SHUNT REGULATOR

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.

Features

  • 2.5% and 1% Tolerance.
  • Max. Temperature Coefficient 50ppm/°C.
  • Temperature Compensated for Operation over The Full Temperature Range.
  • Programmable Output Voltage.
  • 100μA to 100mA Current Sink Capability.
  • Surface Mount SOT23 Package.
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2).
  • Halogen and Antimony Free. “Green” Device (Note 3).

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ZR431L ADJUSTABLE PRECISION SHUNT REGULATOR Description Pin Assignments 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. (Top View) VREF 1 VZ 2 3 GND SOT23 Features  2.5% and 1% Tolerance  Max.
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