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Compact power management IC for medical, fitness wearables

Compact power management IC for medical, fitness wearables

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By Rich Pell



The PMIC supports a low input voltage of just 0.7V for new high-energy density battery architectures such as Zinc Air and Silver Oxide, as well as the more common alkaline battery architecture. With personal and remote monitoring gaining traction, reducing size and extending battery life are critical benefits.

Using a novel single-inductor multiple-output (SIMO) architecture, the MAX20310 integrates four power outputs from a single inductor each with ultra-low quiescent current performance. This high integration reduces solution size by half over comparable discrete solutions, consuming over 40% less quiescent current and improving battery life as a result. In clinical environments, primary cell architectures can create hermetically sealed units to safely disinfect between uses or even dispose of completely to inhibit patient-to-patient infection.

The MAX20310 is suitable for applications such as non-rechargeable medical patches, environmental and equipment monitoring, and discrete sensors for industrial IoT. Operating over the -40 to +85ºC temperature range, the MAX20310 comes in a 1.63×1.63mm wafer-level package.

Maxim Integrated: www.maximintegrated.com

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