TPS23756: What will cause TPS23756 enter pulse skipping mode?

Hi Team,

In this case, the schematic of TPS23756 is same as the TPS23756EVM schematic.

But we have problem to have an expected stable 5V/3A output.

We can find that Vout is unstable and the device is enter pulse skipping under zero load condition.

Could you please indicate which scenario will cause pulse skipping?

Please refer the detail waveform as below.

Here is the waveform under the no load condition:

Here is the waveform of CTL and CS pin:

Thanks and best regards,

Jamie