MP4560DN buck controller resetting Issue

DC-DC Power Converters
1

Hello Team,

I am using part no MP4560DN-LF in my design. I set switching freq to 500Khz and build the circuit as per reference design provided in datasheet for 5V output.
But, when I power up the board buck controller on for 1 mS second only and shut down for 6 mS. Again it turn on for 1 mS and turns off for 6 mS. This keep repeating and hence I am not getting required output. It seems like buck converter is keep resetting continuously.

20250428_114151
20250428_1141514624×3468 3.58 MB

20250428_165625
20250428_1656254624×3468 3.73 MB

Please suggest probable cause and solution for it. Kindly see attached waveform at output of buck converter.

2

Hello namdev.panore,

Are you testing this on your own board or using the evb?

3

Hello Eduardo,

I am using my own board for testing this buck converter.

4

Hello namdev.panore,
Please share your schematic and layout.

5

image
image1046×371 29.3 KB

6

You have a much larger output capacitance than we recommend for the 5V output. Please provide the layout as I previously requested.