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batistuta



Joined: 14 Jun 2007
Posts: 77
Helped: 2
Post13 May 2008 11:07   ask a question.
hi,guys

i have a question to ask. about dc/dc.

just as follows:

if i have a dc/dc(buck)converter, its input from 5.9v to 12v and output is 3.3v iout is 1A, but now if i change input voltage to 5v, and i also want get the same output voltage 3.3v and iout=1A, which circuit should make some changes??
i have some ideas, but not clear, so need your opinion,

thanks.
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Sayem Ahmed



Joined: 07 Apr 2008
Posts: 48
Helped: 3
Location: Dhaka,Bangladesh
Post13 May 2008 14:28   Re: ask a question.
You can look following page.It may help you.

http://www.edaboard.com/viewtopic.php?p=1021284&highlight=#1021284
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batistuta



Joined: 14 Jun 2007
Posts: 77
Helped: 2
Post15 May 2008 2:40   ask a question.
can anyone give more ideas???
thanks
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Audioguru



Joined: 19 Jan 2008
Posts: 287
Helped: 20
Location: Canada
Post15 May 2008 3:47   ask a question.
You forgot to tell us which buck converter circuit or IC you have.
It might work or might not work with a lower input voltage. Its datasheet will tell you if it might work or not.
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