On 15/12/2010 17:43, V G wrote:
> On Wed, Dec 15, 2010 at 8:17 AM, Olin Lathrop<olin_piclist@embedinc.com>w=
rote:
>
>> V G wrote:
>>> 1. I have selected a power diode to drop the voltage of the initial
>>> 5.8 volts to something less than 5.5 volts.
>> I guess I missed something in the flurry of messages, but I thought you
>> were
>> now using a switcher so the input voltage above 5.5V is not a problem, i=
n
>> fact desirable.  Certainly a switcher can be set to deliver pretty close=
 to
>> 5V out, so what's 5.5V got to do with anything now?
>>
> Update: I'm looking at a new switching supply:
> http://www.linear.com/pc/productDetail.jsp?navId=3DH0,C1,C1042,P132453
>
> <http://www.linear.com/pc/productDetail.jsp?navId=3DH0,C1,C1042,P132453>T=
he
> LTC3112
>
> It has very high (95%) efficiency at 1 A draw, which is perfect for my
> application. Reasonable package as well. Now the only thing is a matter o=
f
> getting the sample.

They are definitely giving out samples at present, I just got a few ADCs=20
and DACs from them, arrived in about 2 or 3 days..

--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.