Features and Benefits

  • Buck and Boost Operation Including Seamless Transition between Buck and Boost Modes
    • 2.3V to 5.5V VIN Range
    • 2.60V to 5.14V VOUT with 20mV Step
    • 3A Minimum Continuous Output Current (VINBB ≥ 3.0V, VOUTBB = 3.3V)
    • Burst Current: 3.6A Minimum Output Current for 800μs (VINBB ≥ 3.0V, VOUTBB = 3.3V)
  • I2C Serial Interface Allows Dynamic VOUT Adjustment and Provides Design Flexibility
  • 97.5% Peak Efficiency
  • 40µA Quiescent Current
  • Safety Features Enhance Device and System Reliability
    • Soft-Start
    • True Shutdown
    • Thermal Shutdown and Short-Circuit Protection
  • Multifunction GPIO Pin
    • MAX77816A/F: FPWM Mode Enable
    • MAX77816B: Inductor Peak Current-Limit selection
    • MAX77816C: Output Voltage Selection
    • MAX77816D: Power-OK indicator
    • MAX77816E: Interrupt Indicator
  • Small Size: 1.827mm × 2.127mm, 20-Bump WLP, 0.4mm Pitch

Product Details

The MAX77816 is a high-current, high-efficiency buck-boost regulator targeting single-cell Li-ion battery-powered applications. It supports a wide output voltage range from 2.60V to 5.14V. The IC allows 5A (TYP) maximum switch current. In buck mode, the output current can go as high as 4A, and in boost mode, the maximum output current can be 3A. A unique control algorithm allows high efficiency, outstanding line/load transient response, and seamless transition between buck and boost modes.

The IC features I2C-compatible serial interface. The I2C interface allows the output voltage to be dynamically adjusted thus enabling finer control of system power consumption. The I2C interface also provides features such as enable control and device status monitoring.

The multifunction GPIO pin is register settable to 5 different options such as FPWM mode enable and inductor peak current level selection. These options provide design flexibility that allows the IC to cover a wide range of applications and use cases.

Design Solution: Boost the Run-Time of Portable Electronics with a One-Two Punch ›

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  • Battery-Powered Applications
  • RF Power Amplifiers
  • Smartphones and Tablets
  • Wearable Devices
  • Wireless Communication Devices

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 (1)

Tools & Simulations

EE-Sim Power® Tools

The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.



MAX77816 SIMPLIS Schematic

MAX77816 SIMPLIS Schematic

Software Development

Reference Designs (1)

Product Recommendations

MAX77816 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.

PCN-PDN Information

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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.