Re: Drivers with more source current than LM5112?

John Popelish wrote:
Joerg wrote:
The LM5112 diagram for source current looks a bit dismal when operated at 5V. Figure at bottom right of page 6:
http://www.national.com/ds/LM/LM5112.pdf

Is there a chip like that with more oomph? Doesn't have to be a Schmitt (would be nice though) but as usual must be cheap (<<$1) and somewhat mainstream.

If you are looking at the last graph on page 6, that is the current delivered or drawn from a 5 volt source, so at a 5 volt supply, the current delivered to a 5 volt source must equal zero.

It is a shame they don't provide a more informative graph for 5 volt operation. The best they do appears to be the RDSON curves.


Exactly. If there isn't a spec I can't use it in low voltage designs. Datasheets aren't what they used to be in Robert Widlar's and Bob Pease's time.

--
Regards, Joerg

http://www.analogconsultants.com/
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