1 Reply Latest reply on Mar 1, 2019 1:05 AM by SananyaM_56

    Self-powered USB3 hub design

    edfr_1130341

      Hi,

      The USB3 hub CYUSB330x requires 3.3V analog power supply. In the DVK external power supply is used to derive these voltages. How can i design self-powered USB3 hub that uses VBUS only?

        • 1. Re: Self-powered USB3 hub design
          SananyaM_56

          Hi,

           

          Please confirm if you want a bus powered hub design which uses VBUS for supply? You can directly use VBUS with a 3.3V regulator instead of deriving 5V (VCC_5V) from an external power supply. When the hub is bus-powered in the DVK as well, VBUS is connected to VCC_5V which provides 3.3V and 1.2V.

           

          Best Regards,

          Sananya