This part is a kind of semiconductor called ADP1707.

Function of this product has (ADP1706 - ADP1708) CMOS Linear Regulator.

Manufacturers : Analog Devices

Image and pinout :

Some of the text within the PDF file :

1 A, Low Dropout, CMOS Linear Regulator ADP1706/ADP1707/ADP1708 FEATURES Maximum output current: 1 A Input voltage range: 2.5 V to 5.5 V Low shutdown current: <1 μA Low dropout voltage: 345 mV @ 1 A load Initial accuracy: ±1% Accuracy over line, load, and temperature: ±2.5% 16 fixed output voltage options with soft start: 0.75 V to 3.3 V (ADP1706) 16 fixed output voltage options with tracking 0.75 V to 3.3 V (ADP1707) Adjustable output voltage option: 0.8 V to 5.0 V (ADP1708) Stable with small 4.7 μF ceramic output capacitor Excellent load/line transient response Current limit and thermal overload protection Logic-controlled enable Available in an 8-lead, exposed paddle SOIC and 3 mm × 3 mm, 8-lead exposed paddle LFCSP TYPICAL APPLICATION CIRCUITS ADP1706 1 2 10nF EN GND IN IN SS [ ... ]

ADP1707 PDF Datasheet Download