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Replacing LM185 with TL431

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fjpompeo

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I want to replace a LM185 2.5V with a TL431. Please inform pin configuration. and schematic.

Regards
 

LM285 and LM431 are pin-compatible (TO-92, for example) ..

The main difference is the Vref:
LM285 Vref=1.25V
LM432 Vref=2.5V
All what you have to do is (using the same formula) to re-calculate values of R1 and R2 ..

Regards,
IanP
 

Very thank you. I'll try with simulator.

Regards,

Fernando
 

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