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  • TI Thinks Resolved

PMP9484: PMP9484

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Part Number: PMP9484

Hi, I can see that the NMOS CSD18501 (Q1) used to drive the stepup is used with negative bias. Is that

correct?  The back diode will thwn transfer the durrent i the second phase of the stepup.

  • Hi Zacharias,

    Q1 is driven with a positive voltage. The LM5122 has a high side driver that floats on the SW node.

    Thanks,

    Garrett

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