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TPS62125: About input current Tina simulation

Part Number: TPS62125
Other Parts Discussed in Thread: TINA-TI

Hello all,

I simulated with TPS62125 to check the difference between input current with input cap and without input cap in the Tina-ti.

The below pictures are the file that I download in the and simulation result.



I removed input cap to check input current without input cap, and it is below pictures.

Input cap is used for removing the input current ripple,

I want to know why the input current simulation graph are same?

And, how the input current ripple affected to the IC and system?

Thank you.