The AO4844 uses advanced trench technology to provide excellent RDS(ON)and low gate charge. The two MOSFETs make a compact and efficient switch and synchronous rectifier combination for use in buck converters. AO4844 is Pb-free (meets ROHS & Sony 259 specifications). AO4844L is a Green Product ordering option. AO4844 and AO4844L are electrically identical.