because I don't want to spend shipping and don't want to wait (it's a
hobbyist project)

-Clayton

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Picdude
Sent: Wednesday, July 30, 2003 3:31 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE]: zener voltage regulator design


Why not a UA78M33 which is about 50 cents in 1-pc quantities IIRC.  It puts
out a clean 3.3V, and will handle several hundred mA.

Cheers,
-Neil.



On Wednesday 30 July 2003 15:08, Clayton Mellina scribbled:
> I need a design for regulating 9V down to around 3V with a zener (simple -
> no bells and whistles).  the current capacity must be up to about 100ma.
> attached is a schematic of my design (the parts may not be ideal - but I
> designed with what I had).  My question is: will this design work for what
> I need? I wanted to use just a zener and a resistor but I've read that
this
> design will only supply up to 50ma (this might be ok but better safe that
> sorry).  thanks for checking - I've never designed with a zener before.
>
> -Clayton

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