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LP8864S-Q1: Switching FET spec

Youhei Miyaoka
Expert 3975 points
Part Number: LP8864S-Q1

Tool/software:

Hello team,

I have a question regarding the switching FET used in LP886X(S) circuit.

  In LP886X(S) datasheet it recommended to use switching FET with Rdson resistance <20mohm. I want to try a FET with max Rdson 35mohm for cost reduction. It may increase the power consumption and affect efficiency. I’d like to know if there’s any other concern.

Regards,

Youhei MIYAOKA