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TPS548B28: Reduce overshoot and undershoot

Part Number: TPS548B28

Hi Team,

The customer reports a transient issue, and need to reduce overshoot and undershoot. In addition to increasing the output capacitance, how to adjust Cff or other parameters to reduce overshoot and undershoot?

Regards,
Hailiang

  • In addition, increasing Cout and adjusting the  Cff:  Reducing the Lo value can help with overshoot.   The excel sheet calculates the Cff.     Do you have a schematic and  waveforms to share.