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I has used TPA3250 for PBTL Application. I designed evaluation board follow TPA3250D2EVM.
Component on board is follow all TPA3250D2EVM's BOM.
The schematic diagram and PCB is as follows.
TPA3250 's output have a high voltage ripple,nearly 1V. The voltage ripple followed TPA3250 's switch frequency.If I change the frequency resistance the voltage ripple is followed.
It seems LV filter is not effect. I don't know what about TPA3250D2EVM 's effect in this part.
How can I fixed it?