I2C controlled 1.5-A single cell buck battery charger with 20-mA termination and 1-A boost in WCSP

The BQ25618/619 integrates

charge, boost converter and voltage protection in a single device. It offers the

industry’s lowest termination current for switching chargers to charge wearable

devices by full battery capacity. The BQ25618/619 best-in-class low quiescent

current reduces battery leakage down to 6uA in Ship mode, which conserves

battery energy to double the shelf life for the device. The BQ25619 is in a 4mm

× 4mm QFN package for easy layout. The BQ25618 is in a 2.0mm × 2.4mm WCSP

package for space limited design.