Try LM338K, This three terminal device (TO3a package) output voltage is set
by resister and can be between +1.2V to 32V. The input voltage range is +3V
to +35V. Maximum output current is 5A with load regulation of 0.1% and
0.005%/v line regulation.

Regards,

Jay



At 19:34 14/05/99 +0200, you wrote:
>Hello Everyone..
>
>I have always been served well by the simple 78lxx regulators and if not
>that then the straight 78xx, but now have to regulate a bit of a larger
>current - Basically I need to supply a circuit drawing around 3 to 5 A at 5
>V from a 24 V supply.  I would not have a problem using a larger linear
>regulator with a larger heatsink (I don't have to conserve energy - got
>plenty), except I can't seem to find one offhand..
>
>Do I have to start looking at a switching circuit or transistor driven
>circuit, or is there a simpler (like 1 chip?) approach?
>
>Thanks
> Roland
>
>
>