Features and Benefits

  • VIN Range: 2.30V to 5.5V
  • VOUT Range: 2.60V to 5.14V (I2C Programmable in 20mV Step)
  • Up to 2A Output Current in Boost Mode (VIN = 3.0V, VOUT = 3.4V, ILIM = High)
  • Up to 3A Output Current in Buck Mode (ILIM = High)
  • Up to 97% Peak Efficiency
  • SKIP Mode for Optimal Light Load Efficiency
  • 55μA (Typ) Low Quiescent Current
  • 3.4MHz High Speed I2C Serial Interface
  • Input Current Limit Selection Pin
  • Power-OK Output
  • 2.5MHz Switching Frequency
  • Protection Features
    • Soft-Start
    • Thermal Shutdown
    • Overvoltage Protection
    • Overcurrent Protection
  • 1.827mm x 2.127mm, 20-Bump WLP

Product Details

The MAX77813 is a high-efficiency step-up/step-down (buck-boost) converter targeted for single-cell Li+/Li-ion battery powered applications. The device maintains a regulated output voltage from 2.6V to 5.14V across an input voltage range of 2.3V to 5.5V. The device supports up to 2A of output current in boost mode and up to 3A in buck mode.

The device seamlessly transitions between buck and boost modes. A unique control algorithm allows high-efficiency, outstanding load, and line transient response.

Dedicated enable and power-OK pins allow simple hardware control. An I2C serial interface is optionally used for dynamic voltage scaling, system power optimization, and fault read-back. The device supports two inductor current limit options selected by the ILIM pin.

The MAX77813 is available in a 20-bump, 1.83mm x 2.13mm wafer-level package (WLP).


  • Single-Cell Li-ion Powered Applications
  • Handheld Scanners, Mobile Payment Terminals, Security Cameras
  • AR/VR Headsets

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.

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.



MAX77813 SIMPLIS Schematic

MAX77813 SIMPLIS Schematic

Software Development

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.

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