For your reference, this PMIC includes a list of TSOT functions. There are 8 pins on the supervisor. In order for this IC power to function, the supply voltage (Vsup) cannot be less than 500mV. It is recommended that the maximum supply voltage (Vsup) in this IC power be no more than 7V volts.
LTC2906ITS8#PBF Features
Minimum supply voltage of 500mV
LTC2906ITS8#PBF Applications
There are a lot of Analog Devices, Inc. LTC2906ITS8#PBF Voltage Supervisors applications.