Yes, I do too, but there is some background to this -- I've had issues =20
with the 5V version of this part, and we did some tests to figure that =20
out.  It was just unstable, and it could have been the passives, =20
design, PCB, etc.  However, in the essence of time back then, I found =20
that switching to a different part worked fine, so just swapped it and =20
moved on.  When I found this issue with the 3.3V part, I decided to =20
check if it was a similar issue, and bingo!  Having found a =20
workaround, I'd prefer to just swap to something else and now dump =20
this run (albeit short) of PCB's.

Cheers,
-Neil.




Quoting alan.b.pearce@stfc.ac.uk:

>>
>> No SOT-23 package though :(
>>
>> > This seems to work:
>> >
>> > http://www.digikey.com/product-detail/en/LM2937IMP-3.3%2FNOPB/LM2937IM
>> > P-3.3%2FNOPBCT-ND/270742
>> >
>> > Note the output caps ESR specs.
>
> I would want to know why your original Microchip part isn't working =20
> as you expect.
>
> I assume you have a pair of 1uF chip capacitors as illustrated in =20
> the datasheet. Looked at AN765 to see what it says but doesn't seem =20
> to shed any light on the situation.
>
> Are you sure you are not going into thermal shutdown? I know 68mW =20
> isn't much, but ...
> --
> Scanned by iCritical.
>
> --
> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
> View/change your membership options at
> http://mailman.mit.edu/mailman/listinfo/piclist
>



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