TPS610333-Q1: The reason why FB pin should connect to Vin

Part Number: TPS610333-Q1

Tool/software:

Dear TI experts,

My customer sent a question about TPS610333-Q1.

TPS610333-Q1 is 5V fixed output. but datasheet says that I should connect FB pin to Vin.

Is there any reason of connecting FB pin to Vin? Could you explain more about it? (internal structure or other reasons)

Please check this issue. Thanks.

Best regards,

Chase

  • Hi Chase,

    This is related to the internal structure of the chip. If you need to fix 5V output, you need to connect FB as required, which will enable the voltage divider resistor network inside the chip.

    Thanks.

    Aurora