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TPS562201: The capacitor in the FB loop and the value of inductor

Part Number: TPS562201

Hi team

 

Here is the inquiries from our customer

 

  1. Regarding C4 of the typical application in the datasheet

-    Why is C4 placed ?

-    It would be option but let us confirm whether its mandatory or not.

-    How to determine the value of C4

-    Layout guideline for C4

 

  1. The value of inductor

-    Customer will use the inductor with torelance ± 20%
Which case customer should follow.
Output voltage 3.3V

  • Inductor value : 3.3uH ± 20%
    Typ : 3.3uH within recommendation
    Min : 2.6uH out of recommendation
  • Inductor value : 4.7uH ± 20%
    Typ : 4.7uH (Typ : 3.3uH in the datasheet)
    Min : 3.76uH (Min : 3.3uH in the datasheet)

 Thank you and best regards,

Michiaki