Can you see anything wrong with this 17mm 5a convoy buck driver?

by not_gerg

2 Comments

  1. Using it in a flashlight build. I tested it via my power supply and the led, then I put it in my pill, wired it to the led, put the pill in the light, had a successful test with battery, put on the optic, and it didn’t work

    The led works. No matter if it’s being powered by my power supply, battery, if it’s in or out of the light, or anything it doesn’t work. I can see that it draws 0.04-0.06a from my ps, but thats about it. I also noticed that sometimes when I try to power it by the ps, something (idk if it’s the ps or driver) makes a small wirring noise and the driver draws 2.1a (ps was limited to 4 or 5a). Still no output from that thing

    Looking on the board, nothing looks burnt or anything. Everything looks in tip top shape. I have no idea what went wrong or what to try

  2. crbnfbrmp4

    That capacitor at the top left next to the + lead doesn’t look right to me.

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