This part is a kind of semiconductor called EMP8965-33VF05GRR.
Function of this product has 600mA Micropower CMOS Linear Regulator.
Manufacturers : Elite Semiconductor
Image and pinout :

Some of the text within the PDF file :
ESMT/EMP EMP8965 Fast Ultra High-PSRR, Low-Noise, Low-Dropout, 600mA Micropower CMOS Linear Regulator General Description The EMP8965 low-dropout (LDO) CMOS linear regulators feature ultra-high power supply rejection ratio (75dB at 1kHz), low output voltage noise (30µV), low dropout voltage (270mV), low quiescent current (110µA), and fast transient response. It guarantees delivery of 600mA output current, and supports preset output voltages ranging from 1.2V to 3.3V with 0.1V increment (except for 1.85V and 2.85V). EMP products is RoHS compliant. package options are also offered to provide additional flexibility for different applications. Features Miniature SOT-23-5, SOT-23-6and SOT-89-5 packages 600mA guaranteed output current 75dB typical PSRR at 1kHz 30µV RMS output v [ ... ]
EMP8965-33VF05GRR PDF Datasheet Download
