Maxim Integrated MAX77655 power management IC

The MAX77655 single-inductor multiple output (SIMO) power management IC (PMIC) from Maxim Integrated Products provides a high-density power solution for compact next-generation devices. The PMIC is said to deliver 85% higher power density and a 70% reduction in size compared to competitor solutions, with 700 mA across four buck-boost channels and only one inductor required for a total size of 17 mm².

Designers of ultrasmall portable devices such as wearables, IoT sensor nodes and health monitors are looking to increase computing capability, memory and sensor resources — all in a compact form factor. The PMIC addresses this space-constraint issue by sharing one inductor among all four supplies in a single 3.95 mm² IC. In addition, ultrahigh efficiency helps to extend battery life by providing 90% regulator efficiency during moderate to heavy load conditions, while consuming only 6.9 µA of quiescent current during light load conditions.

The product’s high power density opens avenues for wearables and AI edge manufacturers, whose vision is to boost the ‘intelligence quotient’ and data point collection for small, battery-operated and cloud-connected devices. Designers can now pack an array of precision sensors with high processing power, while delivering on the critical need for long battery life in a small form factor.