I am using an LM2577 as a step-up boost converter (to boost 7V to 12V).
I would like to be able to turn it on/off (there are certain times when it needs to be turned off).
I have tried a transistor (BC516, BC517, 547B):
- on Vin pin: only get 1V instead of 7V so the converter only outputs 2V
- on Switch pin: converter only outputs 6V instead of the 12V I want.
- on GND pin: transistor overheats