Features and Benefits

  • 4x Buck-Boost Regulators, 1x Inductor
  • 2.5V to 5.5V Input Voltage Range
  • 0.5V to 4.0V Output Voltage Range
  • 700mA Total Output Current (3.7VIN, 1.8VOUT)
  • Single-Inductor Multiple-Outputs (SIMO)
  • Up to 90% Efficiency
    • 6.9µA Typical IQ with Two Outputs Enabled in Low-Power Mode
  • I2C Interface and Dedicated Enable Pin
  • Flexible Power Sequencer (FPS)
  • 1.99mm x 1.99mm, 16-Bumps, 0.5mm Pitch Wafer-Level Package (WLP)
    • < 40mm2 Solution Size

Product Details

The MAX77655 is a highly efficient, complete power supply for low-power, ultra-compact applications. It provides four programmable buck-boost switching regulator outputs using only one inductor. Operating from a single Li-ion battery, the MAX77655 delivers a total of 700mA output current (3.7VIN, 1.8VOUT) in less than 40mm2 solution size.

An integrated sequencer controls full startup while an I2C interface allows the MAX77655 to be dynamically configured and monitored.

This device is part of the single-inductor multiple-output (SIMO) product family.


  • TWS Bluetooth™ Headphones/Hearables
  • Fitness, Health, Activity Monitors, and Smart Watches
  • Portable Devices
  • Sensors Nodes and Consumer Internet of Things (IoT)

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

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(*)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.


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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.