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Industry’s smallest quad-output SIMO PMIC

The MAX77655 single-inductor multiple output (SIMO) power management IC (PMIC) from Maxim Integrated Products is described as the highest-density power solution for extremely compact next-generation devices.

According to Maxim it delivers a 70 percent reduction in solution size compared to its nearest competitors, with 700mA across four buck-boost channels and only one inductor required for a total solution size of 17mm².

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, but in more compact form factor. The MAX77655 SIMO PMIC has been designed to address this space-constraint issue by sharing one inductor among all four supplies in a single 3.95mm² IC. In addition, ultra-high efficiency helps to extend battery life by providing 90 percent regulator efficiency during moderate to heavy load conditions, while consuming only 6.9µA of quiescent current during light load conditions.

For additional power management platforms regarding systems requiring less than 500mA, Maxim Integrated has 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 150mA LDO/Loadswitch.


Author
Neil Tyler

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