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LP87702: LP87702 5V boot function!

Kygo Cheng
Expert 6830 points
Part Number: LP87702

Hi,

Excuse me, if my LP87702 does not require 5V boot function,
Can I remove L4 in the picture below? Is there any signal of PG0, PG1, GPO0 that I should remove too?

  • 0
    TI__Expert 4985 points

    Hi,

    If the boost is not functioning properly the device can create powergood faults to PG pins and/or interrupts depending on the used OTP. The device used (LP87702D-Q1) in the picture will create powergood fault to PG1 pin for the boost.

    Boost will still try to switch even if the inductor is removed. I do not see why this would not work but this is not a supported feature by the device and not recommended by TI.

    Best regards,

    Samuli Piispanen