I try to make my own Power Booster to add to my PCB project
from lipo 3.7V 2000mhA battery to 5V
But for some reason, it works fine in a week then the inductor is burned for no idea.
I replaced the inductor, then it works for couple day then burned again.
Sometime it burned even while I solder it to PCB.
I guess it maybe overheating.
DO you guys have any ideas what happened?
I check the pin 8 VBat short to GND when bad Inductor even without power supply.
That’s really weird to me.
Thank you very much for your help.