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Electronics => Electronics => Topic started by: tipipliou on February 13, 2011, 10:49:09 AM

Title: switch regulator advice
Post by: tipipliou on February 13, 2011, 10:49:09 AM

hi
I need a voltage regulator , that can tolerate about 3 Amps
I'll use a 18v NiCd battery ,15v would be ok
I don't know what regulator to choose
will this one do it ?                           http://www.datasheetarchive.com/pdf-datasheets/Datasheets-22/DSA-423669.html (http://www.datasheetarchive.com/pdf-datasheets/Datasheets-22/DSA-423669.html)
what do you suggest?


thanks in advance,
sorry for english mistakes

Title: Re: switch regulator advice
Post by: waltr on February 13, 2011, 11:39:46 AM

Those regulators will work. Just don't forget to use a large enough heat sink.
The power dissipation will be:
Heat (Watts) = current (Amps) * Voltage drop from input to output of regulator.

Title: Re: switch regulator advice
Post by: tipipliou on February 13, 2011, 01:35:49 PM

ok thanks  :D