Maxim Integrated Products, Inc. has unveiled the MAX14720 power management integrated circuit, or PMIC, to optimize power and battery life for wearable medical/fitness and internet of things, or IoT, applications. The MAX14720 PMIC is ideal for non-rechargeable battery (coin cell, dual alkaline) applications where size and energy efficiency are critical. In addition, an electronic battery seal extends shelf life by effectively disconnecting the battery prior to initial power-up.

Integrating the functionality of five discrete devices-power switch, linear regulator, buck regulator, buck-boost regulator, and monitor-the MAX14720 reduces the bill of materials (BOM) and allows for much smaller form factor designs. Advantages of the MAX14720 PMIC include: lower power, extended battery life, longer product shelf life, and flexible operation and system diagnostics. While most battery PMICs operate from 3V, the MAX14720 runs from a primary cell and operates down to 1.8V.

Low quiescent current IP is critical for wearable applications because it can extend the runtime of the system significantly. An electronic battery seal offers extended storage life and allows for a fully sealed housing. Value added features such as push button input monitoring, power-up sequencing, and voltage rail monitoring further reduce BOM cost and space.