ADP2389 Output Voltage

Hi,

I would like to use ADP2389.

So, I have a question.

#1  When I used ADP2389, when the load was changed from 0 to 9 A, the output voltage fluctuated by about 10 mV.

      Is this characteristic of the IC?

      The conditions of the regulator are as follows.
      Switching frequency: 1200 kHz
      Input voltage: 5 V
      Output voltage: 1 V

#2  Is there a way to improve load regulation?

Best Regards,

Yuya

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