dcc-ex / ex-hardware Goto Github PK

I don't see the track connector specified anywhere. I'm looking to get some additional connectors and want to get the right type.

I looked at the data sheet for the MP9942GJ-Z and it supports up to 2A output with FSW of 410Khz.
Usually VIN(9942 VOUT) to MCU Shield power supply, the general power supply needs in 100mA~500mA, in order to leave enough redundancy, I think 1.2A is enough.
According to the inductance value formula:
VIN 12V VOUT 7.2V:
7.2*(12-7.2)/(12 * 1.2 * 410)=5.8uH
VIN 20V VOUT7.2V:
7.2*(20-7.2)/(20 * 1.2 * 410)=9.4uH
VIN 12V VOUT 9V:
9*(12-9)/(12 * 1.2 * 410)=4.6uH
VIN 20V VOUT 9V:
9*(20-9)/(20 * 1.2 * 410)=10uH

Based on the above calculations, the required inductance range is between 4.6uH and 10uH.So, what was the reason for choosing a 56uH inductor?