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UCC2913: start up in large capacitive load case

Part Number: UCC2913

Hello team,

My customer asked me about UCC2913  start up  in large capacitive load case.

When the output capacitive load is 100uF, the output current wave form was swing as below picture. They would like to avoid the output current wave form was swing although IMAX is almost 0.5V, and asked me how they should do.

Yellow : VSS(Input -15V), Pink : output (0V to -15V), Green : Output Current. 

I have the schematics and other waveform of the customer however I can not open all in E2E. So I would like to ask it off line. Would you please tell me who I should contact with?

Best Regards,
Akihisa Tamazaki