This layout is a further iteration of the power supply. The initial aim was to charge USB devices. This version uses a DC/DC converter. This allows the high current of 10 A on one scheme. To simulate a DC/DC converter I have made a very basic sub layout.

However, this should work in reality too, the components could be rather expensive. All components have to operate up to 10 A and too, the DC/DC converter isn't cheap.

In reality, it is probably the better way to avoid the DC/DC converter and rather use a voltage regulator at lower currents.