Compact Quad-Output SIMO Power Management IC with High Power Density for Portable Wearables, IoT Sensor Nodes, and Health Monitors

Compact Quad-Output SIMO Power Management IC with High Power Density for Portable Wearables, IoT Sensor Nodes, and Health Monitors

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ByRajni Setia 0

MAX77655 Single-Inductor Multiple-Output Power Management IC

The MAX77655 single-inductor multiple output (SIMO) power management IC (PMIC) from Maxim Integrated provides the highest-density power solution for extremely compact next-generation devices. The MAX77655 SIMO PMIC delivers a 70 percent reduction in solution size compared to the nearest competition, with 700mA across four buck-boost channels and only one inductor required for a total solution size of 17mm2.

Ultra-high efficiency feature helps to extend battery life by providing 90% regulator efficiency during moderate to heavy load conditions while consuming the only 6.9µA of quiescent current during light load conditions.

Other than MAX77655, the company has also introduced two new configurable PMICs namely the MAX77643 and MAX77642. These ICs offer the industry’s highest efficiency at 93% from a single inductor and a 3-output buck-boost regulator with a 150mA LDO/Loadswitch.

High density, small size, and high efficiency are the key features of the new MAX77655 IC. It offers 85 percent higher power density and provides up to 700 mA total current from just 17mm2 PCB space to support higher current loads for adding computational and sensor resources to next-generation designs. Talking about the size, it cuts the power management board size by 70% by integrating four supplies, while using only a single inductor. Other than these, the IC provides up to 90% efficiency at 3.7 VIN and 1.8 VOUT.

The MAX77655 is available at Maxim Integrated’s website for $1.50 (1000-up, FOB USA); and also available from authorized distributors· The MAX77655EVKIT# evaluation kit is available for $135.

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