Delivering optimal battery life while reducing power consumption, the bq25120 from Texas Instruments presents a highly integrated battery management system that claims to offer the lowest quiescent current at 700-nA with the buck converter, operating at 1.8 V. The bq25120 features a linear charger, configurable LDO, load switch, buck converter, pushbutton control and battery voltage monitor all in one. The IC supports batteries from 3.6-V to 4.65-V, and fast charge currents from 5-mA to 300-mA, allowing wearables and industrial Internet of Things applications to always be on without draining the battery.