I need to deliver 25 pcs of this charger ..... I have little idea of SMPS....

This seems odd to me that someone would hire a novice to make 7.5 VDC SMPS into 5 VDC SMPS when off the shelf units are everywhere and dirt cheap.

 

This seems odd to me that someone would hire a novice to make 7.5 VDC SMPS into 5 VDC SMPS when off the shelf units are everywhere and dirt cheap.

Nothing like a little stress to accelerate learning!

 

Nope the SMPS is an off the shelf module from Mean Well , it is of spec 7.5V , 3A.... This was supposed to be used for charging a battery.... As I goofed up the thermal management of the charger , am able to use it only with 5V....@ 7.5V the device shuts down due to thermal runaway......