I seem to have burned out this chip on my Hobby King ESC (see picture). I am not able to read the component part number. The ESC is no longer available to buy. What is the part number (so that I may fix it)?
It's this one, BTW. https://hobbyking.com/en_us/hobbyking-40a-2-6s-esc-w-ubec-4a.html?___store=en_us
Best Answer
That logo looks like Diodes Incorporated:
If I had to guess, I would say that IC is probably an AP1539 from Diodes Incorporated, which is an adjustable buck regulator (consistent with the surrounding circuitry). I would suggest AP1539SDPG-13 - IC REG BUCK ADJUSTABLE 4A 8SOP. The pinout in the datasheet seems to match the connections that are visible in the image, as well as the package markings: