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TL431 - Programmable Shunt Regulator

Download the TL431 datasheet PDF. This datasheet also covers the TL431A variant, as both devices belong to the same programmable shunt regulator family and are provided as variant models within a single manufacturer datasheet.

General Description

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

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.

📥 Download Datasheet

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

📁 Similar Datasheet

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TL431 ADJUSTABLE PRECISION SHUNT REGULATOR Diodes
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Other Datasheets by Fairchild (now onsemi)

Part Number Description
TL431 Programmable Shunt Regulator
TL431A Programmable Shunt Regulator
TL494 SMPS Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
www.fairchildsemi.com TL431/TL431A Programmable Shunt Regulator 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 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.