The power supply provide 5 volts, which is connected to two low cost linear
regulators, one for 3.3 volts and the other for 1.8 volts. The linear
regulator drop the voltage by dissipating the excess voltage as heat (not
efficient but cheap).
The EP-7260 does not use linear regulators. It uses switching regulators. They
are a more expensive solution. They don't dissipate the extra voltage as
heat. They use inductors to convert the voltage to current.
for more info:
http://www.edn.com/contents/images/336861.pdf
-Curtis.
On March 6, 2006 05:56 am, sagittarian_savvy wrote:
>
> Hi,
>
> I am cuurently working on a TS-7250 board and I wanted to know how
> are the different voltages given to the board. Like the schematic says
> there are three different supply voltages namely 3.3v,4.3v and 1.8v.
> So is it that some voltage regulator IC controls these sort of
> supplies or it just has diiferent arrangement for it.
>
> Anybody?
>
>
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
Yahoo! Groups Links
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