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TPS61161: TPS61161 Ripple interference in image sensor

Part Number: TPS61161

Hi Team,

My customers now use TPS61161 and found  it has ripple interference in image sensor because the ripple phenomenon follows this IC.

the frequency of interference is about 600KHz, the schematic can be roughly referred to the following.

Do you have any idea about how to optimize the ripple for TPS61161?