In the case of Tape & Reel (TR) cases, the regulater IC is delivered. The PMIC chip has 4 terminations. The sum of the pins in this unit is 4. This device has a regulator type called FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR, which means it operates on a DC voltage.
RP103K291D-TR Features
RP103K291D-TR Applications
There are a lot of RICOH Electronic Devices Co., LTD. RP103K291D-TR Linear Voltage Regulators applications.