I would like to confirm the output capacitor for TPS20xx.
In the datasheet, there is a comment "USB rev 1.1 requires 120 mF per hub." in figure 36 - 39.
I have questions for this comment.
1. Is the value 120uF defined by the specification of USB?
If it is right, is the same value (120uF) for USB 2.0, 3.0 and so on?
2. If the value is not defined, could you please teach how toset the value (There are values 10uF, 33uF, 47uF in the datasheet)?
Best regards,
Atsushi Yamauchi