Oct 2, 2019   SOURCE: PR NewsWire

Maxim Power Management Solution Sets Industry's Standard with Highest Efficiency of 96% and Lowest Quiescent Current of 6µA to Boost Runtime of Portable Devices

MAX77827 1.5A buck-boost converter extends battery life and provides 81% I(Q )improvement compared to competitor, while enabling system stability

SAN JOSE, Calif., Oct. 2, 2019 /PRNewswire/ -- With the lowest quiescent current (I(Q)) in its class of 6µA, as well as the highest peak efficiency of 96 percent in the market, designers can now maximize a portable device's battery life with the MAX77827 buck-boost converter from Maxim Integrated Products, Inc. (NASDAQ: MXIM). This 1.5A high-efficiency, compact converter allows 1.8V to 5.5V input and 2.3V to 5.3V output, while providing the system stability needed to minimize abrupt or unexpected shutdowns. The MAX77827 addresses the power requirements of low-power wide-area network (LPWAN) applications, asset tracking devices and many internet of things (IoT) applications.

    --  To order MAX77827 or learn more, visit http://bit.ly/MAX77827_Buck_Boost
    --  For details about Maxim's buck-boost converters, visit
        http://bit.ly/Maxim_buck_boost
    --  For a hi-res image, visit http://bit.ly/MAX77827_Image

The growing lithium-ion battery market is largely driven by an increasing inclination towards smart electronic devices with expanding functionalities packed within. Primary cell batteries based on Lithium Thionyl Chloride (Li-SOCl2) chemistry or dual-cell Alkaline (AA or AAA) with operations as low as 1.8V is also gaining popularity in the long-life portable market segment. However, regardless of the types of batteries used, these devices will discharge through a wide range of voltages while sustaining a power rail between 2.8V to 3.8V, specifically for powering MCU, Wi-Fi, BLE and GPS features. The traditional buck or bypass boost plus low dropout (LDO) topologies are not ideal solutions for these sophisticated devices because they are not the most efficient at prolonging battery life. Additionally, a simple buck converter topology may cause earlier system shutdown when battery voltage is high to maintain the required power for the aforementioned applications, leaving underutilized battery capacity.

With the lowest quiescent current in the market, highest efficiency gains and small solution size, the MAX77827 buck-boost converter sets the standard for maximizing battery life. It is an ideal solution to support applications with low power requirements because, regardless of the battery voltage variations, it can automatically transition between buck and boost modes to provide a consistent output power supply. Compared with the current means of utilizing a bypass boost converter followed by an LDO, the MAX77827 improves efficiency by up to 12 percent. Compared with utilizing a buck converter, it allows continuous system operation with lower voltage from the battery to further utilize the battery capacity. The MAX77827 is the latest buck-boost converter in Maxim's portfolio.

Key Advantages

    --  Longer Battery Life: offers lowest quiescent current in its class of
        1.5A buck-boost converters at 6µA (81 percent lower than closest
        competitor) and prolongs battery run-time for applications that run as
        low as 1.8V. It features 96 percent system efficiency regardless of buck
        or boost modes and is consistently superior across the load range versus
        closest competitor.
    --  Better System Stability: provides system stability to minimize abrupt or
        unexpected shutdown, including fast line transient response for a
        seamless mode transition between buck and boost modes to keep systems
        running steadily. During mode transition when V(OUT) is set to 3.3V with
        a 15µs rise/fall time, the ripple is less than 1 percent of the output
        voltage. Fast load transient response provides stable system voltage
        from transient loads pulling down the system voltage. In extreme harsh
        conditions of going from 0A to 1A load in 15µs, MAX77827 undershoot is
        controlled to 6 percent of the output voltage where the undershoot of
        the competitive solution is 12 percent with a longer recovery time.
    --  Small Form Factor: supports space-constrained designs with its 2.04mm x
        1.64mm WLP size and less than 15mm(2) total solution size. It features a
        single external resistor to set the output voltage to provide additional
        savings to an external component and board space.

Commentary

    --  "High adoption of lithium ion batteries in smart consumer electronics is
        driving the increasing demand for this market, which is projected to
        reach $106,493 million by 2024," said Rishab Sharma, analyst for P&S
        Intelligence. "Complimentary technologies that help prolong battery life
        and stability can only contribute to their continued growth."
    --  "For any system design where battery life is critical, there is no
        better solution than the MAX77827," said Eric Pittana, director for
        Mobile Power Solutions at Maxim Integrated. "With the lowest quiescent
        current and highest efficiency, designers can truly optimize their
        solutions and maximize their system performance. Specifically, for
        applications such as GPS asset tracking devices with single-use
        discharge, prolonging battery life is essential."

Availability and Pricing: 

    --  The MAX77827 is available at Maxim's website for $0.84 (1000-up, FOB
        USA); also available from authorized distributors
    --  The MAX77827EVKIT# evaluation kit is available for $50

About Maxim Integrated
Maxim Integrated develops innovative analog and mixed-signal products and technologies to make systems smaller and smarter, with enhanced security and increased energy efficiency. We are empowering design innovation for our automotive, industrial, healthcare, mobile consumer, and cloud data center customers to deliver industry-leading solutions that help change the world. Learn more at https://www.maximintegrated.com.



     Contact: 
     Mariel Santos


               
     408-601-3145


               
     
              Mariel.Santos@maximintegrated.com

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SOURCE Maxim Integrated Products, Inc.