Data Sheet Rev. 0
User Guides
2 View All

Overview

Features and Benefits

  • Single-Inductor, Multiple-Output (SIMO) Extends Battery Life
    • 300nA Shutdown Current
    • 3.0µA Operating Quiescent Current (3 SIMO Channels On)
    • Improves Overall System Efficiency while Reducing Size
    • Maintains Regulation without Dropout unlike Traditional Bucks
    • Glitchless Buck-Boost Operation
  • Compact, High-Efficiency Power Solution
    • Three Independent Channels from SIMO Regulator
    • 2.7V to 5.5V Input Voltage Range from Single Cell Li-Ion
    • 0.8V to 5.25V Output Voltage Range (Table 1)
    • Flexible Power Sequencing
    • On-Key Input for Hardware Enable
    • Reset Output
  • Small Size
    • 2.75mm x 2.15mm (0.7mm max height) WLP
    • 30-Bump, 0.4mm Pitch, 6 x 5 Array
    • 15.2mm2 Total Solution Size

Product Details

The MAX77680/MAX77681 is a 3-channel single-inductor multiple-output (SIMO) buck-boost regulator that regulates three independent rails using only 3µA of quiescent current (IQ). The SIMO improves battery life by replacing inefficient LDOs while being competitive in efficiency to traditional single-output bucks.

The SIMO operates on a input supply between 2.7V and 5.5V. The outputs are independently programmable between 0.8V and 5.25V depending on ordering option. Each output is a buck-boost with glitchless transition between buck and boost operation. The SIMO can support >300mA loads (1.8VOUT, 3.7VIN).

The device integrates a flexible power sequencer (FPS) to control power-up/down order of each output. The default output voltages and sequence can be programmed at the factory. An I2C serial interface is used to further configure the device.

The MAX77680/MAX77681 is available in a 30-bump wafer-level package (WLP). Total solution size is only 15.5mm2. For a similar product with an LDO and battery charger, refer to the MAX77650 data sheet.

Applications

  • Action Cameras, Wearable/Body Cameras
  • Hearables: Bluetooth Headphones and Earbuds
  • Low-Power Internet of Things (IoT) Gadgets
  • Wearables: Fitness, Health, and Activity Monitors

Product Categories

Comparable Parts Click to see all in Parametric Search

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (2)

Documentation & Resources

  • View All (3)
  • Data Sheets (1)
  • User Guides (2)
    • Document Type

    Tools & Simulations

    Software Development

    MAX77680/MAX77681 EV Kit Software, 1.0.1
    ZIP
    DCM SIMO Calculator, 3.0.2
    XLSX

    Product Recommendations

    MAX77680 Companion Parts

    Recommended Related Parts

    Design Resources

    ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

    MAX77680 Material Declaration
    Quality And Reliability
    Symbols and Footprints

    Support & Discussions

    MAX77680 Contact ADI Technical Support »
    MAX77680 Ask your question »
    MAX77680 Contact ADI Technical Support » MAX77680 Ask your question »

    Sample & Buy


    Ordering FAQs


    See our Ordering FAQs for answers to questions about online orders, payment options and more.

     

    Buy Now Pricing


    (**) Displayed Buy Now Price and Price Range is based on small quantity orders.

     

    List Pricing


    (*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

     

    Lead Times


    Please see the latest communication from our CCO regarding lead times.

     

    Sampling


    Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.


    Price Table Help

     

    Evaluation Boards

    Pricing displayed is based on 1-piece.

    Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

    Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.