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PMIC extends battery life in wearables

PMIC extends battery life in wearables

By eeNews Europe



The MAX14720 is well suited for non-rechargeable battery (e.g., 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 3 V, the MAX14720 runs from a primary cell and operates down to 1.8 V.

Its low quiescent current of 1.1 µA is critical for wearable applications because it can extend the run time of the system significantly. The chip comes in a 25-bump, 0.-4mm pitch, 2.26 x 2.14-m wafer-level package and is specified over the -40°C to 85°C temperature range.

MAX14720 power-management solution information page

Maxim Integrated: www.maximintegrated.com

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