This part is a kind of semiconductor called KIA1117API15.
Function of this product has BIPOLAR LINEAR INTEGRATED CIRCUIT.
Manufacturers : KEC
Image and pinout :

Some of the text within the PDF file :
SEMICONDUCTOR TECHNICAL DATA LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATOR The KIA1117API is a Low Drop Voltage Regulator able to provide up to 1A of output current, available even in adjustable version (Vref=1.25V) U E KIA1117API00~ KIA1117API50 BIPOLAR LINEAR INTEGRATED CIRCUIT A C S T FEATURES Low Dropout Voltage : 1.1V/Typ. (Iout=1.0A) Very Low Quiescent Current : 2.5 /Typ. Output Current up to 1A Fixed Output Voltage of 1.5V, 1.8V, 2.5V, 2.85V, 3.3V, 5.0V Adjustable Version Availability : Vref=1.25V Internal Current and Thermal Limit A Minimum of 10 Available in for stability L L M D D N T N T O DIM A B C D E F G R H J K L M V N O P Q R H S T U V MILLIMETERS 10.30 MAX 15.30 MAX _ 0.30 2.70 + 0.85 MAX _ 0.20 Φ3.20 + _ 0.30 3.00 + 12.30 MAX [ ... ]
KIA1117API15 PDF Datasheet Download
