[sdiy] LM336 replacement

[Roy J. Tellason]

On Saturday 16 July 2005 09:12 pm, Heitor Alves wrote:
> Hi Gang!
>
> Does anyone know if there is a possible replacement part for the LM336
> 2-5v ref. part? I cant find one of this babyes here in portugal... a
> replacment part/circuit would be great. I know this part is a zener
> (or sort of). with three terminals.

You might look at the TL431,  which is available in 8-pin DIP and TO92 
packages,  and is "adjustable" with a couple of external resistors from 2.5V 
on upwards.

This is a real common part to be found in computer power supplies,  if you 
have any dead ones on hand or can get access to some.