In a Tape & Reel (TR) case, the IC voltage regulator is delivered. In total, there are 4 terminations on the gadget. There are 4 pins in total on this board. In this case, the regulator type is FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR, which corresponds to this voltage regulator IC.
RP109L231B-TR Features
RP109L231B-TR Applications
There are a lot of RICOH Electronic Devices Co., LTD. RP109L231B-TR Linear Voltage Regulators applications.