This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS25980: Does TPS259804 have a pre-bias startup function

Part Number: TPS25980


Hi team,

Does TPS259804 have a pre-bias startup function? Before the internal MOS is turned on, Vout has a voltage, and then EN is given. Can it start normally?

Thanks for your support.



  • Hi Matt,

    TPS25980 doesn't have reverse current blocking. Some current may flow in reverse direction from the body diode path if Vin is low and Vout is high. The body diode is not recommended for continuous current flow. 

    Regarding the startup, device should have fine startup even if Vout is high.

    Best Regards,