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TPS65094: Can Buck6 be disabled?

Neal Zhu
Expert 2470 points
Part Number: TPS65094

Hi

Can Buck6 be disabled?, DISABLEB= 0 is not described in Datasheet,Now needs Buck 6 not to work with no output,thanks!

  • 0
    TI__Genius 12735 points

    Hi Neal,

    BUCK6 for the TPS65094 can only be disabled after the device has finished the power sequence. This means the circuitry for BUCK6 must be on the board so the device can complete the power up sequence before the processor disables BUCK6. 

    The other option you can utilize is to utilize a resistor divider to "trick" the device in to thinking BUCK6 is regulating by applying the proper output voltage setting for BUCK6 to the FBVOUT6 pin. I would also recommend selecting a version of the TPS65094 devices that has VTT disabled to avoid having to supply VTT as well.

    Best regards,

    Layne J