A Simple PCB for getting various voltage(e.g. 3V3, 5V, 8V etc...) from one voltage source

Purpose

My power supply capable a single channel voltage source only. If I need another voltage value (e.g. 3V3 on a 12V board). There is no change for me to do so using my power supply. So i create this board to let me get another voltage values(e.g. 3V3, 5V, etc...) from the main power supply (12V).

PCB outlook

This is the front side

This is the back side