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TPS65131-Q1: Such as accessories, please TPS65131 layout diagram is part of the circuit to improve how to improve the EMI problem can be?

user6290524
Prodigy 10 points
Part Number: TPS65131-Q1
Other Parts Discussed in Thread: TPS65131

0451.layout.zip

  • 0
    TI__Intellectual 1965 points

    Hi,

    Thanks for your question. Let me contact the expert for this part. You can expect a response by 3/5/20.

    Best,

    Grant

  • 0
    TI__Mastermind 18550 points

    Hello,

    I reviewed your layout and it looks reasonable. Couple of comments I have are:

    1. Add 0.1uF capacitor in parallel to C55 on VSDN supply to help in high frequency filtering at the output.

    2. Add 0.1uF capacitor in parallel to C41 on VSDP supply to help in high frequency filtering at the output.

    3. It is not fully clear from the layout but I believe that there are 9 vias in the center pad of TPS65131. Please ensure that these vias are connected to a solid ground plane on the internal layer. All circuits for TPS65131 should have a one solid ground plane.

    Kind Regards,

    Liaqat