@axwax I have cooked more than one of their chips myself before. Some of them are rather robust, others are not. Overall I wouldn't rely on their built-in limits, especially when the chip has less heat sinking than XLSemi might have wanted (as seems to be the case in your solar controller).
@jaseg Maybe I should just cut my losses and get a new controller. 🤔
It came bundled with a 2x80W panel, and always seemed to underperform compared to one of the super-cheapo controllers I've used before, even though it has all fancy-pants XT60 connectors rather than the usual screw terminals.
Anyway, I guess there's not much point in replacing the chip - I've definitely got more trustworthy USB outlets that I can use instead...
@axwax If it's not that one, I'm sure it's some other XLSemi part. XLSemi is a big Chinese manufacturer of various switchmode regulator chips, and all their part numbers start with "XL".
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