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TPS63020: TPS63020

Part Number: TPS63020

We have been using the TPS63020 in our designs for several years, but are now updating the PCB.  Previously we had VINA connected to VIN, but I notice the data sheet was modified 3/19 to remove the VIN/VINA connection.  FIgure 3 shows an internal resistor between VIN and VINA.   There is no mention of the resistor, or the relationship of VINA to VIN.   Sould we now drop the connection between VIN and VINA (using the internal resistor and an external filter capacitor), put an external (what value?) resistor between VIN and VINA, or how should these now be handled?

  • Hi Bill,

    Please keep VIN and VINA unconnected, as shown in the latest datasheet version. This is how we do it on our TPS63020 evaluation module.

    Directly connecting VIN and VINA is also fine, if you have a clean power supply, but the internal resistor (100 Ω) and the external capacitor make a power supply filter for the internal control circuit.

    Best regards,
    Milos