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LM5175: Unstable output at transition

Part Number: LM5175
Other Parts Discussed in Thread: PMP9490

Hi TI,

I am designing a 375W battery charger where input is 11-32V and output is 6-14V/25A for the battery. I am having problem during transition of buck-boost to boost.  there is a loud audible noise since the pulse is unstable. but becomes stable once it goes to boost mode.

I reference my design from PMP9490.

Thanks and regards,