From: Demetris <fgc...@cy...> - 2006-11-24 16:41:17
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so 0.5 A is not enough? ----- Original Message ----- From: "Dave Hylands" <dhy...@gm...> To: "General mailing list for gumstix users." <gum...@li...> Sent: Friday, November 24, 2006 6:33 PM Subject: Re: [Gumstix-users] Gumstix Power and Custom Design > Hi Demetris, > > On 11/24/06, Demetris <fgc...@cy...> wrote: >> Wouldn't the LM2574HVM-5.0 do the job for me? > > Personally, I'd use the newer LM2674 over the 2574. Is 0.5A enough? > > Let's use the LM2675 since it can go upto 1A. If you go to the > national web site and use the webbench it will produce a design for > you. > http://www.national.com/pf/LM/LM2675.html > If you punch in say 20v to 30v, 5v out at 0.8A, it comes up with a > list of parts. > > It looks like it's only about $7.20 in parts. > > Two things have happened since I last looked at this (about a year > ago). National has dramatically improved the parts selection that > their WebBench SW produces, and the prices/availability of the > components has dropped dramatically as well. > > So I take it back. Using something like the LM2675 is quite a viable > option now. > > Make sure you follow the layout recommendations and you'll be good to go. > > -- > Dave Hylands > Vancouver, BC, Canada > http://www.DaveHylands.com/ > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share > your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users |