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Respuesta a "What is this chip?"Looking at the new picture and comparing it to the teardown image, it looks like the designation on the components is different; the designation in your picture reads 100 546 C73, where the same component on the teardown reads 100 539 V05. This leads me to believe that the last six characters are some sort of batch number and are not relevant. To me, this component looks more like an SMD inductor. Usually, square grey packages with two leads are inductors, since there is a circular coil of wire inside them. The 100 denotes 10 uH. You should be able to get away with purchasing any 10 uH inductor in the correct size and the search functions on Mouser will let you do this with relative ease. Here is a link to the fixed inductor category on Mouser, filtered to 10 uH, just measure the size of your burned out device and add it to the smart filter and that should get you somewhere in the ballpark. No guarantee this will fix your device though, it looks like the inductor conducted a lot of current which may have...