William Chops Westfield wrote:

>
> On Jun 23, 2005, at 1:02 AM, Alan B. Pearce wrote:
>
>>> If cost isn't a huge factor, I think a better solution would be to 
>>> use a
>>> Power Trends 78ST105HC [at $17 in ones!]
>>
>>
>> Actually, when you look at that cost, if one needs a switching 
>> regulator,
>> then the cost will be about the same...
>
>
> I dunno.  Here's a tentative (untested) PCB layout for the low-cost
> "Roman Black" switching regulator, in a 3-terminal configuration...

How big is this circuit board?  Looks about 0.8 x 1 inch.  Would a smd 
one approach the size of a TO220?
David


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