With the MAX14720 power management integrated circuit (PMIC) from Maxim Integrated Products, Inc., designers can optimize power and battery life for medical/sports wearable electronics and Internet of Things (IoT) applications.Extending battery life and achieving lower power consumption are common challenges faced by engineers developing wearable and IoT products. The PMIC MAX14720 is ideal for non-rechargeable battery applications (coin cell, dual alkaline) where size and energy efficiency are critical. Furthermore, electronic battery sealing extends battery life by effectively disconnecting the battery before initial power-up. The integration of five discrete power device functions—switch, linear regulator, buck regulator, buck-boost regulator, and monitor—within the MAX14720 reduces the bill of materials (BOM) and enables significantly smaller form factor designs.
Advantages
• Lower power consumption: While most battery-powered PMICs operate from 3V, the MAX14720 operates from a primary cell at 1.8V.
• Extended battery life: The low IP quiescent current is critical for wearable applications as it can significantly extend system runtime.
• Longer product shelf life: The sealed electronic battery provides extended shelf life and allows for a fully sealed housing.
• Flexible operation and diagnostics: Value-added features such as button input monitoring, power-on sequence monitoring, and voltage rail monitoring further reduce cost and component list space.
