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TPS22990: CT cap limitation

Part Number: TPS22990

Tool/software:

Hi team,

Is there a maximum CT capacitance limitation? My customer has a 3.3V design with the output capacitance up to 260uF, so they need to increase the CT cap to 220nF to lower the inrush current around 4.5A. However, they are concerned that this may cause the device to operate outside of the safe area. The soft-start time is about 15ms. Could you please share your thoughts on whether the design is risky or not? Thanks!

Regards, 
Sam Ting