This part is a kind of semiconductor called 5093MTC.

Function of this product has FAN5093MTC.

Manufacturers : Fairchild Semiconductor

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Some of the text within the PDF file :

www.fairchildsemi.com FAN5093 Two Phase Interleaved Synchronous Buck Converter for VRM 9.x Applications Features • Programmable output from 1.10V to 1.85V in 25mV steps using an integrated 5-bit DAC • Two interleaved synchronous phases for maximum performance • 100nsec transient response time • Built-in current sharing between phases • Remote sense • Programmable Active Droop (Voltage Positioning) • Programmable switching frequency from 100KHz to 1MHz per phase • Adaptive delay gate switching • Integrated high-current gate drivers • Integrated Power Good, OV, UV, Enable/Soft Start functions • Drives N-channel MOSFETs • Operation optimized for 12V operation • High efficiency mode (E*) at light load • Overcurrent protection using MOSFET se [ ... ]

5093MTC PDF Datasheet Download