For your reference, this PMIC includes a list of DFN functions. There are a lot of similarities between this IC management and other Multi-Voltage Supervisor products. IC management conducts in a 4-voltage supply. There are 10 pins on the supervisor. In order for this IC power to function, the supply voltage (Vsup) cannot be less than 1V.
LTC2900-1IDD Features
Multi-Voltage Supervisor type Minimum supply voltage of 1V
LTC2900-1IDD Applications
There are a lot of Analog Devices, Inc. LTC2900-1IDD Voltage Supervisors applications.