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[DPRG] Re: regulator
Subject: [DPRG] Re: regulator
From: Vimal Shankar
vimalsshankar at yahoo.com
Date: Wed Oct 11 22:32:35 CDT 2006
> Ed,
>
> > Pretty low. Needs to run the ATMega128 on my
> small bot, motor encoders,
> > etc. Might add a couple of sonars, etc.
>
> LM78S05 - 5V @ 2A, TO220 package, add a medium-sized
> heatsink. If you're
> drawing 100mA, for example, the poor little
> regulator has to dissipate 1.3W
> (13V*0.1A). Draw half an amp and you might need a
> fan :)
>
> A better (more efficient) solution would be a
> buck-converter switching regulator.
How about using a Low Dropout regulator ?
Better still.. Roman Black has a few VERY good SMPS
designs..
Ask me for links if you are interested.
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