In terms of packaging, power management follows the Tape & Reel (TR) model. There are also other types of integrated circuits included in the supervisor, like POWER SUPPLY SUPPORT CIRCUIT.
RP300K43DA8-TR Features
RP300K43DA8-TR Applications
There are a lot of RICOH Electronic Devices Co., LTD. RP300K43DA8-TR Voltage Supervisors applications.