TPS25750: Power pins connection as a sink only device

Hi,

Can we keep VIN_3V3/PP5V unconnected if the system is working only under dead battery mode?  (This system only support power sink role.)

In parallel, can we connect both ADCIN1/ADCIN2 to LDO_1V5 to support a "AlwaysEnableSink" configuration?

Antony