piclist 2001\11\13\213259a >
Thread: 7805 pin compatible switching regulator ?
www.piclist.com/techref/power/priswitch.htm?key=switching
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face BY : David VanHorn email (remove spam text)



At 01:17 PM 11/14/01 +1100, Gennette, Bruce wrote:
>Does it have to fit the pin holes on an already designed board?
>
>If not you can use a high power series pass transistor (like a TIP2955) to
>pump electrons around the regulator (the regulator still sets the voltage
>output, but the current goes around it, through the transistor).

But the heat still remains to get rid of.
If you're linear, you get 19W to get rid of, in a 24V to 5V@1A application.

Go SMPS, and it's cold.
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