[Soekris] net4801 DC INPUT

[Antoine Zen Ruffinen]

Hello!

Having a close look to my net 4801, it seem that it use a LM2642 witch 
is a step-down switching regulator. The datasheet of it 
(http://www.national.com/ds/LM/LM2642.pdf) says that the maximum input 
voltage of it is 30V. But if you have a doubt between two maximum value, 
use the lowest one ! Anyway, in general, giving the lowest input voltage 
to a regulator that you can (but not to close from the lowest limit), is 
a good idea. it will ask less effort from the regulator.

Hope it help & Merry Christmas !

Antoine

Christophe Prevotaux a écrit :
> Hello,
>
> There is a value for input voltage of the net4801
> on the website of soekris of 6-20VDC but on the PDF manual
> it says 6-28VDC. Which one is correct ? 
>
> is it 20VDC or 28VDC max input voltage ? 
>
>
>