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TL431 Datasheet Programmable Shunt Regulator

Manufacturer: Fairchild (now onsemi)

Download the TL431 datasheet PDF. This datasheet also includes the TL431A variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (TL431A-FairchildSemiconductor.pdf) that lists specifications for multiple related part numbers.

General Description

The TL431/TL431A are three-terminal adjustable regulator series with a guaranteed thermal stability over applicable temperature ranges.

The output voltage may be set to any value between VREF (approximately 2.5 volts) and 36 volts with two external resistors These devices have a typical dynamic output impedance of 0.2Ω.

Active output circuitry provides a very sharp turn-on characteristic, making these devices excel lent replacement for zener diodes in many applications.

Overview

www.fairchildsemi.com TL431/TL431A Programmable Shunt Regulator.

Key Features

  • Programmable Output Voltage to 36 Volts Low Dynamic Output Impedance 0.2Ω Typical Sink Current Capability of 1.0 to 100mA Equivalent Full-Range Temperature Coefficient of 50ppm/°C Typical.
  • Temperature Compensated For Operation Over Full Rated Operating Temperature Range.
  • Low Output Noise Voltage.
  • Fast Turn-on Response.

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More Datasheets from Fairchild (now onsemi)

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