PMIC PF3000 Datasheet contains the following comments regarding voltage drop
for the SW2:
The higher output voltages available depend on the voltage drop in the conduction path as given
by the following equation: (VSW2IN - VSW2) = ISW2* (DCR of Inductor +RONSW2P + PCB trace
The similar statement, which allows to estimate minimal input voltage, is also for the SW3;
but there is no such equation for the SW1. What are considerations for the SW1?