1. PD_P3V3 (C140) or PD_LDO_3V3(C141) output is unstable (ring)

2.        Symptom: PD_P3V3 (C140) or PD_LDO_3V3(C141) output is unstable (ring) when did the Adapter DC cable  or USB cable plug in-out test.(The failure symptom is random)
        Failure sample: 1 of 200pcs after life test finished.   

3. Power on waveform CH1:CC1; CH2:CC2; CH3:VIN_3V3; CH4:VBUS

4. Power on waveform CH1:CC1; CH2:CC2; CH3:VIN_3V3; CH4:VBUS
CH1:CC1; CH2:SPI_SSZ; CH3:VIN_3V3; CH4:VBUS

5. Power on waveform after remove R350
Power on waveform after remove R350 and mount R309(0 ohm)
CH1:CC1; CH2:SPI_SSZ; CH3:LDO_3V3; CH4:VBUS
CH1:CC1; CH2:SPI_SSZ; CH3:VIN_3V3; CH4:VBUS

6. PD_P3V3 Failure symptom PD_P3V3 waveform Zoom in
Note. Measured with offset 3V voltage.

7. Additional PD_P3V3 waveform and its zoom in (Note
Additional PD_P3V3 waveform and its zoom in (Note. The system is working okay under this waveform)