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TPS650864: Vout drop

Ivy Jin
Expert 7495 points

Part Number: TPS650864

Hi team,

My customer use TPS6508641RSKT in their new project. And the issue is that each output has a large drop.

The test waveforms as shown below.

Could you please help review the schematic and give some suggestions to resolve the issue?

Thank you!

TPS6508641_module.pdf

In the measurement waveform, up/down refers to the performance waveform of each output voltage when VIN_12V is powered on and off.
https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/196/test-result.7z
Regards,
Ivy
  • 0
    TI__Expert 6700 points

    Hello Ivy,

     Thank you for reaching out, and happy holidays. Our engineering team currently has limited staffing now through January 3rd. We will provide feedback no later than January 7th.

    Regards,

    Alex

  • 0 in reply to Alex Saenz
    TI__Mastermind 27446 points

    Hi Ivy,

    Thanks for using E2E! We have made available a schematic and layout checklist that customers can use to review their designs. It can be found in the product folder, under technical documentation. Here is the direct link: TPS65086x Schematic and Layout Checklist (Rev. A). Once the checklist is complete, please send it back to us with the information requested below so I can provide additional support:

    • What SoC are they powering?
    • could you send the measurement waveforms in a .zip folder?

    Due to the Christmas and New Year's Holidays, responses may be delayed from 12/20/21 - 1/3/22

    Thanks,

    Brenda