Please let me know about mean of external components for PMP10765 and PMP10143 below.
①About noise filter, why difference capacitor value?
(PMP10765 is 1mH/6.8μH/6.8μH, but PMP10143 is 1mH/4.7μH/4.7μH)
Is there calculation method?
②About PMP10765 schematic, what mean of D4?
I think that D1 is reverse protection, but I don't understand mean of D4.
③About PMP10765 schematic, what mean of R3 and R101?
Best regards,
Satoshi