A Tape and Reel package is used to package the power management. In this PMIC, you can find TSOT functions for your reference. There are 8 pins on the power managment ic.
LTC2909ITS8-5#TR Features
LTC2909ITS8-5#TR Applications
There are a lot of Analog Devices, Inc. LTC2909ITS8-5#TR Voltage Supervisors applications.