This part is a kind of semiconductor called RT9176.

Function of this product has 1.5A Fixed and Adjustable Low Dropout Positive Voltage Regulators.

Manufacturers : Richtek

Image and pinout :

Some of the text within the PDF file :

RT9176 1.5A Fixed and Adjustable Low Dropout Positive Voltage Regulators General D escription The RT9176 series of high perf ormance positive voltage regulators is designed or fa pplication s requiring low dropout performance at fully rated current. Additionally, the R T9176 series provides excellent regulation over variations in line and loa d. Outsta nding feature s include low dropout performance at rated current, fa st tra nsient re sponse, internal current-li miting, and thermal-shutdown prote ction of the output device. The RT9176 series of three terminal regulators of fers f ixed a nd a djustable voltage option s available in spa ce-saving SOT -223, TO-252, and TO-263 packages. Feature s z z z z z z z Low Dropout Performance, 1.5V Max. Full Current Rating Over Line a nd Temperatu [ ... ]

RT9176 PDF Datasheet Download