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new products

platform, Thingsee One, for creating new IoT (Internet of

Things) products and services.

Maxim’s PMIC Reduces Solution Size By

50% for Wearable Medical and Fitness

Applications

Designers of primary cell wearable medical and fitness

applications can now significantly reduce solution size

by 50% and extend battery life with the MAX20310

ultra-low quiescent current (IQ) power management

integrated circuit (PMIC) from Maxim Integrated

Products, Inc. (NASDAQ: MXIM). The wearable 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. For example, a report by

Allied Market Research projects that the global remote

patient monitoring market is expected to grow at a

compound annual growth rate (CAGR) of 17% to reach

$2.13 billion by 2022.1

There are several factors to consider when designing

for wearable medical and fitness applications, including

ultra-small form factor and longer battery life. However,

designers typically need discrete components to build

a sophisticated power tree which can take up precious

board space, consume high quiescent current, and burn

through battery life when the device is in sleep mode.

In clinical environments, there are additional challenges

since rechargeable solutions involve contacts, clips, and

charging ports where germs may linger.

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 use

or even dispose of completely to inhibit patient-to-patient

infection. The MAX20310 is ideal for applications such

as non-rechargeable medical patches, environmental

and equipment monitoring, and discrete sensors for

industrial internet of things (IIoT). Operating over the

-40-degree Celsius to +85-degree Celsius temperature

range, the MAX20310 is available in a small, 1.63mm x

1.63mm wafer-level package (WLP).

Key Advantages

Small Solution Size: Available in a SIMO dual buck-

boost architecture with single external inductor; Reduces

solution size by 50% compared to discrete solutions

Versatile Architecture: Supports Zinc Air, Silver Oxide,

and Alkaline battery systems with low input voltage of

0.7V to 2V

Longer Battery Life: Consumes 40% lower quiescent

current during sleep or standby mode compared to

discrete solutions

Commentary

“This ultra-small wearable PMIC allows for patient

comfort, particularly when it comes to devices which

must be worn 24 hours a day, 7 days a week,” said Frank

Dowling, Director for Industrial & Healthcare at Maxim

Integrated. “It also improves active runtime for longer

battery life, another essential component for wearable

applications.”

“Maxim’s newPMIC is away to improve patient outcomes

through continuous monitoring, a trend which is rapidly

growing,” said Susie Inouye, Research Director and

Founder at Databeans.

Availability and Pricing

Pricing available upon request

An evaluation kit is available: MAX20310EVKIT#

More information about MAX20310: https://www.

maximintegrated.com/products/MAX20310

78 l New-Tech Magazine Europe