A Tape & Reel (TR) package is used in this voltage regulator to optimize performance. There is a possibility that DC DC switching regulator can give voltage at 3.3V volts.
RP504K111D-E2 Features
RP504K111D-E2 Applications
There are a lot of RICOH Electronic Devices Co., LTD. RP504K111D-E2 Voltage Regulators applications.