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TPS650860EVM-116: Surplus layer

Part Number: TPS650860EVM-116

Hi support team,

I design with a 10-layer board.
It is designed with reference to the evaluation board and data sheet.

What should I do with the surplus layer?
Should I use solid GND?


  • Hello,

    If you have 4 extra layers, I would recommend filling any unused space with ground pours. With 4 extra layers, you could also put more layers between the digital signals and the switching regulators but they work fine as is so that's low priority.