So I successfully [assembled](https://tiny.tilde.website/@tahnok/112198007707455544) the USB-C Express card, and before I put it into a laptop I want to verify that the power works properly, since that's all the complexity of this design. I decided to feed 3.3V power from my new power supply (which I think I understand now) and plug in a USB powered ring light I have, since it seems like a nice dumb power sink that's probably USB compliant. But it doesn't work well? Here's what I know so far: - The power button lights up when I plug the ring light in, so some current is flowing, and the voltage is 5.17V which is maybe a bit high but seems within range. It's drawing 0.004A - When I turn on the the light, it immediately turns off, I think because it's drawing too much instantaneous current and then it triggers the current limit on the power supply. - I had the light working for a bit if I turned up the current limit. This seemed to be around 0.8A peak, but settled down to 0.7A - I can do no longer keep the light on, even if I allow 1A current I am comparing this to the Adafruid PowerBoost 500 which does work, so the problem isn't the light, or at least it's possible to configure this chip to behave the deliver enough power. On the powerboost the light draws 0.4A when on. It degrades gracefully (ie doesn't immediately shut off) if I lower the current below this, but the voltage does drop. I think the inductor is wrong maybe? Or I have too many capacitors