Mp2617h circuit not working

i have design a circuit using mp2617h for input=12v, output=4.2v with power path management system.
but it is not working properly.
what is the reason ?

Screenshot from 2020-09-09 00-04-00

Hi srsahoo,

Thank you for contacting MPS. There are a number of things that can cause the MP2617H to not perform correctly. Can you please email your schematic and layout to so that we can investigate your issue in more detail? Can you also explain your testing set up?

Brendan Schoemehl
Field Applications Engineer
Monolithic Power Systems | MPS Now