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TPS54560: TPS54560DDAR无法正常启动输出电压

Part Number: TPS54560

TPS54560在有输入电压时,无法正常输出12V,波形如下,有可能是什么原因造成的呢?

CH1为VIN输入电压     CH2为12V输出电压   ch3为SW点波形   ch4为电感电流波形