MikroElektronika Nano Power 2 Click Board Battery Charger

Micropower Operating Current (0.9μA typ, 1.7μA max) Preserves Battery Power
Tiny 1.11mm x 0.76mm 6-Bump WLP and SOT23 Packages Save Board Space
Internal Precision Reference Saves Space and Cost of an External Reference
< 1% at Room Temperature, < 2.5% Over Temp Reference
Multiple Reference Voltages (1.252V, 1.66V, 1.94V, and 2.22V)
Input Voltage Range = -0.2V to 5.7V
Supply Voltage Range (1.7V to 5.5V) Allows Operation from 1.8V, 2.5V, 3V, and 5V Supplies
< 10μs Propagation Delay
Push-Pull (MAX40000) or Open-Drain (MAX40001) Outputs
Cell Phones
Tablets and Consumer Accessories
Notebook Computers
Electronic Toys
Portable Medical Instruments/Wearables
Level Detectors