4The LR4054-T with 6.5V Polymer 1 500mA SOT-23-5L Battery Management ICs ROHS manufactured by LR4 is a low-loss, high-efficiency one-cell 4A Li-Ion battery management IC. This IC is designed with 5 protection features, all together make it a reliable one-cell protection IC for Li-ion/polymer batteries. It features advanced over-voltage, over-current, over-temperature, and short-circuit protections, and delivers a 4A current with a 6.5V, 500mA SOT-23-5L package. Further it is RoHS compliant and designed to meet the latest standards and regulations.