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LM5118: Dithering Circuit to improve EMC

Shaofeng Luo
Intellectual 1310 points
Part Number: LM5118

Hi team

Our customer is testing LM5118, and we want to add an external dithering circuit to improve EMC performance, do you have recommended solution? Or we can just inject an external dithering voltage to RT pin?

  • +1
    TI__Mastermind 42201 points

    Hi Shaofeng,

    Thank you for using the E2E forum.

    Yes, should be possible with the LM5118.

    In this case you should an R-C-R connection to the Rt resistor.

    Please ensure you that you keep within the allowed frequency of the LM5118 (best is to be around 300kHz).

    Best regards,

     Stefan