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TPS53625: Transient issue

Part Number: TPS53625

Hello,

             Customer change PR205 empty, PR208->10K / PR210->2K and increase 470uF cap. The specification of Closest  and & Farthest DIMM are over DDR spread sheet 30mV as below. The low frequency transient response should be ok but have higher peak to peak voltage at high frequency for these setting. Has any tuning way of VCCDDR4 power rail to solve this issue? Thank you. 

Schematics

drive.google.com/.../view             

BR

Patrick