A Tape & Reel (TR) package is used to package the power management. For your reference, this PMIC includes a list of SOT-23-5 functions. There are many benefits that this IC power shares with other Active products as well.
R3112N221A-TR-FE Features
Active type
R3112N221A-TR-FE Applications
There are a lot of RICOH Electronic Devices Co., LTD. R3112N221A-TR-FE Voltage Supervisors applications.