PMIC claims to reduce power usage of wearable, IoT apps

Maxim Integrated Products Inc. has introduced a power management integrated circuit (PMIC) that allows designers to optimise power and battery life for wearable medical/fitness and Internet of Things (IoT) applications. The MAX14720 PMIC is intended for non-rechargeable battery (coin cell, dual alkaline) applications where size and energy efficiency are critical.

Increasing battery life and achieving low power are common challenges faced by engineers when developing wearable and IoT products. As such, the PMIC flaunts an electronic battery seal that 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.

MAX14720

While most battery PMICs operate from 3V, the MAX14720 runs from a primary cell and operates down to 1.8V, stated the company. Additionally, it boasts low quiescent current IP that is critical for wearable applications because it can significantly extend the runtime of the system. An electronic battery seal offers extended storage life and allows for a fully sealed housing. Likewise, value added features such as push button input monitoring, power-up sequencing and voltage rail monitoring further reduce BOM cost and space.

The MAX14720 is available in a 25-bump, 0.4mm pitch, 2.26mm x 2.14mm wafer-level package (WLP) and is specified over the -40掳C to 85掳C temperature range.