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I have a Network Video Recorder, Chinese one, NBD8016S-XC v2.03. I think it had an electrical shock after power outage, just want to try to repair it. I have found the IC that is burnt, but can not find the replacement by its code. I will attach a picture if someone can have a look and recognize it I will be very grateful. I think on the package TPHaUA is written but nothing appears on google search:( enter image description here This one is the same component but next to the one that is burnt.enter image description here

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    \$\begingroup\$ Looks like SOT-23-6, but please check the dimensions of the capsule with a caliper. That could narrow down your search. \$\endgroup\$
    – winny
    Jun 15, 2022 at 14:45
  • \$\begingroup\$ thanks, i was thinking the same, will try to measure and post the dimensions later tomorrow, thanks again! \$\endgroup\$
    – Sevo
    Jun 15, 2022 at 19:48

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Function and pinout matches TPS560430Y, but there may be others with this pinout. The inductor 2.2 µH is a bit small for this circuit, but OK if used with <= 12 V input.

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  • \$\begingroup\$ Thank you very much, looks like the winner, i will measure some voltages tomorrow on the working one and post back the results, thanks again for your help :) \$\endgroup\$
    – Sevo
    Jun 15, 2022 at 19:50
  • \$\begingroup\$ TI got several generations and variants of these "simple switchers", pin compatible but different voltages, frequencies and inductors. Digging into TI datasheets for markings is a good idea. \$\endgroup\$
    – Lundin
    Jun 16, 2022 at 10:50

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