TL431 component calculator




The TL431CALC spreadsheet calculates all component parameters for any desired output voltage for the TL43x, TLV43x and TL1431. The spreadsheet includes limits for each device. Resistor values are calculated to the nearest 1% value.


Calculation tool

TL431 Design Calculator SLVC093.ZIP (58KB)

Release date: 02-Nov-2005
Supported products & hardware

Supported products & hardware

Shunt voltage references
TL1431 Precision adjustable (programmable) shunt reference TL431 Adjustable precision shunt regulator TL432 Adjustable precision shunt regulator (reverse pinout) TLV431 1.5% accuracy, low-voltage, adjustable precision shunt regulator

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