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TUSB320LAI: VBUS capacitor for DRP application

K.Yaita
Guru 29720 points
Part Number: TUSB320LAI
Other Parts Discussed in Thread: TUSB320

Hi Team,

I understand TUSB320LAI is newer and recommended device than TUSB320.
Regarding VBUS capacitor for DRP application, I found the different schematic between TUSB320LAI and TUSB320 as the following.

-TUSB320LAI




-TUSB320


1)
It seems FET that enable/disable 150uF capacitor isn't required for TUSB320LAI if 150uF is set at System VBUS.
Is my understanding correct?

2)
If 1) is correct, is the FET required for TUSB320?

Best Regards,
Yaita