[Paparazzi-devel] Tiny13 3V3 Rail Problem (11 ohms)

[Matthew Currie]

Group,


 I have a Tiny13 here which was operating happily during the day and 
upon returning the next, it was not.  I was powering it with ~ 17V 
inadvertently which may be relevant to the problem.  The symptoms I 
observed were the 3V3 line coming on briefly and then dropping out, 
pulsing about once per second or so.  I removed the LM1117 regulator IC 
and now measure 11 ohms across the GND and 3V3 rail.  Before I begin 
tearing components off I wanted to run this past others in case they 
came across something similar.  I can't picture what would be causing 11 
ohms of conductance across the rail.  In summary, it ran for almost 24 
hours at a high voltage (17V) so if something burnt up, this would 
explain it.


Regards,
Matthew Currie