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TPS548A29: Schematic Review

Noriyuki Takahashi
Genius 9910 points
Part Number: TPS548A29

Hi team

Could you review the schematic as attached?

Regards,
Noriyuki TakahashiTPS548A29RWWR.xlsx

  • 0
    TI__Genius 15030 points

    Noriyuki,

    If possible, I would recommend adding two more of the 100uF capacitors between Vout and PGND to reduce output voltage overshoot. 

    It may be possible that the output voltages goes slightly (5mV) below the minimum Vout of 0.71V if DACOUT is 0.4V when it is connected through the 62k resistor. Keeping DACOUT at/above 0.6V while the FB pin is connected to the 62k resistor should prevent this from being an issue.

    Regards,

    Kadeem

  • 0
    TI__Mastermind 19970 points

    Takahashi-san,

    Add a 1kOhm resistor in series with the C1828 (Cff), this gives flexibility on zero placement and improves load regulation if Cff is a large value