It is packaged with Tape & Reel (TR). It also contains ICs of other kinds, such as POWER SUPPLY SUPPORT CIRCUIT, which are included in the power management.
RP300N26DC3-TR-FE Features
RP300N26DC3-TR-FE Applications
There are a lot of RICOH Electronic Devices Co., LTD. RP300N26DC3-TR-FE Voltage Supervisors applications.