S6BP501A/502A Pin Connection when Not Using DD1V Power Rail - KBA224528

Version 7

    Author: RinoS_61    Version: **

     

    Question:

    How to connect the pins when not using the DD1V power rail of S6BP501A/502A?

     

    Answer:

    When not using the DD1V power rail of S6BP501A/502A, DD1V block pins should be connected as Table1 shows.

     

      Table 1. DD1V block pins

    Pin No.

    Pin name

    I/O

    Description

    Pin connection when not used

    1

    FB1V

    I

    Feedback pin for DD1V output voltage

    Ground

    2

    PVCC1V

    -

    Power supply pin for DD1V

    IN3V pin

    3

    LX1V

    O

    Inductor connection pin for DD1V

    Open

    4

    PGND1V

    -

    Power ground pin for DD1V

    Ground

    26

    EN1V

    I

    Enable pin for DD1V

    Ground

    30

    PG1V

    O

    Open drain type power good output pin for DD1V

    Ground

     

    When not using the DD1V power rail of S6BP501A/502A, some of the components are not required. Figure 1 shows these marked as X.

     

    Figure 1. Schematic of S6BP501A/502A showing unnecessary components

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