Power management chip targets non-rechargeable IoT
The MAX14720 PMIC is well suited 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.
While most battery PMICs operate from 3V, the MAX14720 runs from a primary cell and operates down to 1.8V. Its low quiescent current IP is critical for wearable applications because it can extend the runtime of the system significantly. The chip comes in a 25-bump, 0.4mm pitch, 2.26×2.14mm wafer-level package (WLP) and is specified over the -40-degree Celsius to 85-degree Celsius temperature range.
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