This project is for you to be able to charge your mobile phone using your car battery. This uses high efficiency buck converter to step down 12V down to 5V. It can be able to deliver up to 2A current which is more than enough for 2 mobile device.
It uses L5973 buck converter that can deliver up to 2 A. The input voltage can be anywhere between 7 to 36V. This was part of my bluetooth speaker project and was tested and guaranteed working.
PCB Layout
This was part of a bigger PCB of my bluetooth speaker project. Below is the photo of the layout.
