The charger IC ISL9519CHRZ-T is a lithium-ion battery charging solution for single-cell or multi-cell (up to 3 cells) applications. It comes in a compact 50-QFN (5mm x 7mm) package. This device supports various charging modes, including constant current, constant voltage, and trickle charge. The ISL9519CHRZ-T also features an integrated voltage regulator and has a low quiescent current to minimize power consumption when the battery is not being charged. It is designed for use in portable electronics, consumer products, and other applications where lithium-ion batteries are used.