Nordic Semiconductor nPM1100-CAAB-R7, Li Ion Charger IC, 5 V, 660mA, WLCSP

The Nordic Semiconductor integrated Power Management IC (PMIC) has a linear-mode lithium-ion or lithium-polymer battery charger with high terminal voltage in a compact 2.1x2.1 mm WLCSP package. It has a highly efficient DC/DC buck regulator with configurable dual mode output. The nPM1100 is an extremely compact PMIC device, created for space constrained applications that have a small lithium-ion or lithium-polymer battery. It is compatible with all nRF52 and nRF53 Series SoCs, supports charging batteries at up to 400 mA through USB, and delivers up to 150 mA of current to power external components with regulated voltage.

Ultra-high efficiency prolongs battery life or allows for use of smaller and less costly batteries
Small solution size leaves space for additional features without increasing product size
No software control
Automatic USB port detection minimizes development time
Reel packaging