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Re: gEDA-user: fried my LDO :-(



You got two puffs of magic smoke from one device and then it starts to work?

In this case I would replace the part. I have had voltage regulators
break a leg and then dump the voltage in into the voltage out taking a
lot of stuff with it.

Steve Meier

DJ Delorie wrote:
>>I have dead bugged voltage regulators a number of times due to uhm
>>dsylexic reading of pinouts. I have never had a deadbugged voltage
>>regulator properly wired then cause damage to another component.  So
>>relax, smile, fix the pinout issue because you really hate yourself when
>>you do the same thing for the same device...twice.
>>    
>
>Well, the problem is that it was powered up while it was IMproperly
>wired.  There was a cloud of smoke and everything.  I rewired it and
>got a second puff of smoke, but the third time I powered it up it
>seemed to work properly.  I'm just worried that it will fail in the
>future and fry the ethernet chip.
>
>I'm thinking I burned out the protection diodes, but now that they're
>all dead open everything else seems to be OK.
>
>
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>
>  



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