TL431 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

TL431 product

TL431

Power Management (PMIC)

Voltage RegulatorShunt RegulatorPrecision Reference

The TL431 is a versatile, 3-terminal adjustable shunt regulator providing a stable 2.5V reference, programmable up to 36V.

Best for

  • Voltage regulation
  • Precision reference circuits
  • Feedback loops in power supplies

Avoid if

  • Applications requiring currents > 100mA without external pass transistors

Check before use

  • Resistor tolerance for voltage accuracy
  • Thermal dissipation in SOT23 package

Key specifications

Vref
2.495V
Output Range
2.5V - 36V
Dynamic Impedance
0.2Ω

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Power SuppliesInstrumentation

CAD Models

Download ECAD models for TL431: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Where to Buy

Real-time and catalog pricing from verified distributors

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

The TL431 is a programmable shunt regulator that functions like a precision Zener diode, providing a stable reference voltage of approximately 2.5V.