Maxim Introduces Quad-Output SIMO Power Management IC for Wearables, IoT Sensors and Health Monitors

Maxim Integrated has introduced the breakthrough MAX77655 single-inductor multiple-output (SIMO) power management IC (PMIC) that provides the highest-density power solution for extremely compact next-generation devices. This PMIC delivers a 70 percent reduction in solution size compared to the nearest competition, with 700 mA across four buck-boost channels and only one inductor required for a total solution size of 17 mm square.

Designers of ultra-small portable devices such as wearables, internet of things (IoT) sensor nodes, and health monitors are looking to increase computing capability, memory, and sensor resources in their feature-rich devices – all in an ever more compact form factor. The MAX77655 SIMO PMIC addresses this space-constraint issue by sharing one inductor among all four supplies in a single 3.95 mm square IC. Besides, ultra-high efficiency helps to extend battery life by providing 90 percent regulator efficiency during moderate to heavy load conditions, while consuming only 6.9 µA of quiescent current during light load conditions.

For additional power management platforms regarding systems requiring less than 500 mA, Maxim Integrated also introduced two new configurable PMICs – the MAX77643 and MAX77642. These ICs offer the industry's highest efficiency at 93 percent from a single inductor and a 3-output buck-boost regulator with a 150 mA LDO/Loadswitch.

Key Advantages of MAX77655:

  • Highest Density: Offers 85 percent higher power density; provides up to 700 mA total current from just 17 mm square PCB space to support higher current loads for adding computational and sensor resources to next-generation designs.
  • Smallest Size: Cuts power management board size by 70 percent by integrating four supplies, while using only a single inductor.
  • High Efficiency: Provides up to 90 percent efficiency at 3.7 VIN and 1.8 VOUT.

Testimonials on MAX7765:

Kevind Anderson, Power semiconductor analyst at Omdia says that ultra-small electronics become more wearable and integrated for end-users, it becomes harder for designers to add functionality. Any part of the system that can be reduced in size while increasing power will allow designers to pile on more computing horsepower for next-generation applications.

Karthi Gopalan, Director of Mobile Power Business Unit at Maxim Integrated says that the MAX77655 breakthrough SIMO topology ushers in new capabilities to millions of small, battery-operated, and cloud-connected systems. The highest power density that this solution offers opens avenues for wearables and AI edge manufacturers, whose vision is to boost the 'intelligence quotient' and data point collection for these devices. Designers can now pack an array of precision sensors with the highest processing power while delivering on the most critical customer need of maximum battery life in the smallest form factor.

Click here to learn more about the MAX77655.