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TPA2025D1: VBAT ripple requirement

Allan Fan
Expert 6700 points
Part Number: TPA2025D1

Tool/software:

Hi experts,

Customer used TPA2025D1 and measured quite high 627mV ripple at VBAT with 3.3V test condition. 

Wondering is there any concern or just fine between the 2.5V - 5.2V spec range?

Regards,

Allan

  

  • 0
    TI__Expert 5815 points

    Hi Allan,

    Our team has received your question. Responses may be a little slow due to the holiday season.

    Thanks for your patience,

    Ramsey

  • 0
    TI__Guru** 102755 points

    Hi Allan,

    The PSRR spec provided in this device documentation is tested for a considerably lower ripple amplitude of 200mVpp, the performance at such higher ripple is not guaranteed.
    However, if they test it across few different devices and the performance is good, they should be OK.

    Best regards,
    -Ivan Salazar
    Applications Engineer