If I understand, the correct pin number is one with a dot next to it, and the square pad is the + pin.
I suspected that one to be the ground.
Added 1 month ago.
Hi there,
The dot mark in the footprint serves as the pin-1 indicator to be consistent with the device marking as well. The pin-1 indicator is placed near pad 1 for all parts to ensure the correct orientation is followed when the component is being mounted to the board.
Let me know if you have more questions.
Kind regards,
Roman
Answered 1 month ago.