PMP41062: About reason of choice of Buck converter in PMP41062

Tool/software:

Hi team,

In my understanding, when TPS25751D output 5V to VBUS, this 5V is supplied from PP5V. And when larger voltage(9V, 15V and 10V) output, these output is supplied from PPHV.

However in this reference design, TPSM365R3 is used for PP5V supply. This device can supply only 300mA and can't supply 3A.

In this design, when TPS25751D supply 5V to VBUS, is 5V supplied from PPHV?

In TIDA-050047, TPS56339 is used to PP5V supply. This device can source up to 5A and can support 5V/3A.

Why is TPSM365R3 used in PMP41062?

Best regards,

teritama