I recently bought the vma404 module, DC-DC ADJUSTABLE VOLTAGE STEP DOWN MODULE LM2596S
The device fulfilled its purpose flawless - up to the last weekend, it stopped working at all.
The output voltage equals the input voltage, regardless how many revolution the little screw does.
Did I fry the board accidentally?
Is there a description for the circuit?
Thanks for your reply.
And this forum needs a search function!