The SM2321PSAC-TRG is a MOSFET P Trench 30V 4.3A 1.3V @ 250uA 56 mO @ 4.3A, 10V SOT-23-3 RoHS manufactured by Sinopower. It is a high-speed switch featuring low on-resistance combined with low threshold voltage for use in power management applications. This switch utilizes a Trench Process technology designed to provide superior RDS(on) and fast switching speeds for improved efficiency. The part is RoHS compliant and has a maximum operating temperature of 175°C. It features a power dissipation of 167mW, a drain-source breakdown voltage of 30V, an on-state resistance of 56 mO at 4.3A, a gate-source breakdown voltage of 10V, a drain current of 4.3A, and a gate current of 250uA.