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LMR33630-Q1: Layout suggestion about BOOT

Amelie Zheng
Genius 10865 points
Part Number: LMR33630-Q1

Hi Team,

I am helping customer to review LMR33630-Q1 PCB Layout. I have onequestion need to ask.

Does it need to add another res serial with Cboot?

I saw datasheet doesn't have such a res. Just want to confirm whether need to add or not.

Thank!

  • 0
    TI__Expert 8245 points

    Hi,

    The Rboot is used to slow down the rate of switching edge. It brings a better EMI performance but makes efficiency worse. So normally we don't need it, however if your customer has strict EMI requirements then you can suggest them add a Rboot pad for debug.