Power management is packaged in a Tape & Reel (TR) way. For your reference, this PMIC includes a list of SOT-23-5 functions. There are a lot of similarities between this IC management and other Active products.
R3112N291C-TR-FE Features
Active type
R3112N291C-TR-FE Applications
There are a lot of RICOH Electronic Devices Co., LTD. R3112N291C-TR-FE Voltage Supervisors applications.