This thread applies to TPS43330-Q1.
In device TPS43330 (non-A version): When device in LPM and waking up EXTSUP gets shorted to VREG and that may cause a restart of the device (including running buck regulators):
High-IQ in Low-Power Mode under certain load-change condition (when changing load from 700mA to 170mA, and then removing the load results in Continuous-Mode operation instead of low-power mode.)
The above silicon bugs were fixed in TPS43330A.