sounds like a simple 78L05 with some good filtering (make SURE you use a
diode to prevent the boat from sucking all the power from your pic when the
engine starts)

michael

-----Original Message-----
From: Gavin Jackson <vulcan@IHUG.CO.NZ>
To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Date: Friday, March 13, 1998 5:47 PM
Subject: Power Supply


>Hi there
>
>I'm looking for a DC-DC converter that can
>step 24V down to 5V. It's for a PIC I have
>onboard a boat. It only needs to be able
>to supply 5mA max and have as few
>external components as possible.
>I have a zener, but that's just using
>too much batter power.
>
>I've been looking at the MAXIM IC's but I
>can't find any that will do, although I'm
>sure I've seen one before.
>
>Please suggest any that you may used
>before.
>
>Regards
>
>Gavin
>--------------------------
>vulcan@ihug.co.nz
>http://www.geocities.com/TheTropics/Cabana/2625
>--------------------------
>