Try this Digikey part: 78ST205HC-ND
Just follow the information on the data sheet and you can't go wrong J
As for schematic review services, I can probably do that for you, and I
tell you up front if I didn't feel qualified. Before billing you. (I have
really good rates for R&D.)
If there is enough demand, I may considering offering some basic boards like
USB adapter boards with power supplies and what not, on EBay.
"People sleep peaceably in their beds at night only because rough men
stand ready to do violence on their behalf." - George Orwell
From: Paul Nolan [mailto:idrunapersonal@...]
Sent: Friday, October 21, 2011 5:44 AM
To: General mailing list for gumstix users.
Subject: Re: [Gumstix-users] How have I managed to kill 10 Overos?
On Wed, Oct 19, 2011 at 5:01 PM, William Pretty Security Inc
Also I know it sounds trite, but why don't you use a battery and a linear
I know it's a pain in the ass, but it's a lot cheaper that 10 Overo's :-(
Make that 11. I`m testing a linear regulator now, but it gets too hot to
use for more than a short time (system is powered by two 18650 batteries in
series, so 7.2-8.4V). My other test was to add a super cap to the 3.3V
switching regulator. Worked fine for over 100 battery insertions. The next
day I inserted the battery and the Overo died, to the sound of much cursing.
I`ve tested the voltage on an oscilloscope, and the voltage goes up in a
straight line with no overshoot when the battery is inserted. The TPS chip
on the Overo is supposed to be able to handle up to 4.2V and spikes up to
5.2V, so I have no idea what can be causing my problems.
If I don't' have a solution by Monday I`ll have no choice but to switch to a
COM supplier that offers technical support such as schematic review services