I have found the specsheets.. A am building a controller and not a heater
after all, so I think you are right - using a linear regulator would
probably be a bit crude :-)

Thanks for the advice
Roland
-----Original Message-----
From: Mark Walsh <mwalsh@USWEST.NET>
To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Date: 15 May 1999 02:04
Subject: Re: [OT] High Power Voltage Regulator


>Roland Andrag wrote:
>
>> current - Basically I need to supply a circuit drawing around 3 to 5 A at
5
>> V from a 24 V supply.
>
>Take a look at the Linear Technology LT1074/1076
>parts.  These are switching regulators that work
>well in this type of application.
>
>With a linear regulator you'll have about 100
>Watts of heat to dissipate to get 25 Watts of
>useful power.
>
>Mark Walsh
>