Hi guys. I have searched the forum but could not come up with an
answer for this. I have a mixed 5v and 3.3v circuit and am looking for
an inexpensive (but good) chip to replace my power circuit (which at
the moment is quite crude and has both a 5v regulator, 3.3 LDO and
some electrolytic caps as well). Input range should be 10v to 30v or
so (automotive). Cost should be low. Any suggestions? Thanks a lot.

------------------------------------



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MAXIM (www.maxim-ic.com ) has several dual output DC/DC chips. I used a
MAX 1677 in a design I spun a few years ago. It was a step-up
application but they also have step down chips. They are also very
liberal in sending samples. I don't claim they are low-cost (a nebulous
term anyway).

Emmett Redd Ph.D. mailto:E...@missouristate.edu
Professor (417)836-5221
Department of Physics, Astronomy, and Materials Science
Missouri State University Fax (417)836-6226
901 SOUTH NATIONAL Dept (417)836-5131
SPRINGFIELD, MO 65897 USA

Physicists always practice energy conservation.

> -----Original Message-----
> From: m...@yahoogroups.com [mailto:m...@yahoogroups.com]
> On Behalf Of merapcb
> Sent: Sunday, September 28, 2008 1:12 AM
> To: m...@yahoogroups.com
> Subject: [msp430] Dual output DC/DC chip for 5v and 3.3v?
> Hi guys. I have searched the forum but could not come up with an
> answer for this. I have a mixed 5v and 3.3v circuit and am looking for
> an inexpensive (but good) chip to replace my power circuit (which at
> the moment is quite crude and has both a 5v regulator, 3.3 LDO and
> some electrolytic caps as well). Input range should be 10v to 30v or
> so (automotive). Cost should be low. Any suggestions? Thanks a lot.
>
> ------------------------------------



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