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why the voltage regulator AMS-117 may burnt -out?

Discussion in 'General Electronics Discussion' started by A.L.Z, Apr 5, 2015.

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  1. A.L.Z


    Apr 3, 2015
    Hi all .
    I have a voltage regulator AMS -1117 . I know that this component is so sensitive ( high temperature and etc. )
    At first it work fine but suddenly it guess it may burnt - out. I have 16 board which have this regulator and work at the same time , so I just want know the reason of burning - out this regulator .
    thanks a lot for taking the time .
  2. Colin Mitchell

    Colin Mitchell

    Aug 31, 2014
    AMS -1117 is not a regulator identifier
  3. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    Jan 21, 2010
    The AMS-1117 regulator (which I actually have a number of...) is described here.

    In general, this component (like any other) will fail if it is asked to dissipate too much heat.

    This may be for any or any combination of the following factors:
    1. Input voltage is higher than expected
    2. current draw is higher than expected
    3. ambient temperature is higher than expected (unlikely to be a primary cause)
    Where I use "expected" I am using it to mean values that were used to calculate (correctly) that the device would operate within spec.
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