TL431 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

TL431 product

TL431

Power Management (PMIC)

Shunt RegulatorVoltage ReferencePrecision

The TL431 is a versatile, three-terminal adjustable shunt regulator providing a stable 2.5V reference voltage. It is ideal for precision voltage regulation and current limiting applications.

Best for

  • Shunt voltage regulation
  • Precision current limiting
  • Voltage reference circuits

Avoid if

  • Applications requiring extremely low power consumption in off-state
  • High-frequency switching applications beyond the device's response time

Check before use

  • Stability requirements for capacitive loads
  • Cathode current limits

Key specifications

Reference Voltage
2.5 V
Max Cathode Voltage
36 V
Dynamic Impedance
0.2 Ω

Compliance & Environment

RoHS
Yes
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Power RegulationIndustrial Control

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

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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 three-terminal adjustable shunt regulator that acts as a precision voltage reference. It is commonly used as a replacement for zener diodes due to its superior temperature stability and low dynamic impedance.