This part is a kind of semiconductor called APL1085.

Function of this product has 3A Low Dropout Fast Response Positive Adjustable Regulator and Fixed 3.3V.

Manufacturers : Anpec Electronics Coropration

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APL1085 3A Low Dropout Fast Response Positive Adjustable Regulator and Fixed 3.3V Features • • • • • • • • Fast Transient Response Guaranteed Dropout Voltage at Multiple Currents General Description The APL1085 is a low dropout three-terminal adjustable regulator with 3A output current capability. In order to obtain lower dropout voltage and faster transient response, which is critical for low voltage applications, the APL1085 has been optimized. The output available voltage range of adjustable version is from 1.25~5.75V with an input supply below 7V , and the fixed 3.3V output voltage device is also available. Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection [ ... ]

APL1085 PDF Datasheet Download