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TPS2373-4EVM-758: PG pin of TPS2373 is unusual!

Part Number: TPS2373-4EVM-758
Other Parts Discussed in Thread: UCC2897A, TPS2373

Hi team:

I design a circuit by by imitating the demo circuit,but the PG pin and VCout and TPH\TPL\BT pins all are Abnormal output,as shown in the figure.

Could you help me with these problems?

thanks~!