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  2. Power Management
  3. Switching Regulators
  4. Step-Down (Buck) Regulators
  5. Internal Power Switch Buck Regulators
  6. MAX77711

Data Sheet Rev. 5

Overview

Features and Benefits

  • 3A/Phase Configurable Buck Regulator
    • 3A, 6A, 9A, or 12A Output Current Capability
  • 2.3V to 10V Input Voltage Range
  • 0.25V to 5.2V Output Voltage Range
    • 0.25V to 1.3V (5mV steps) in Low-Range 
    • 1V to 5.2V (20mV steps) in High-Range 
  • Pin Programmable Output/Phase (Φ) Configuration
    • 4Φ, (3+1)Φ, (2+2)Φ, (2+1+1)Φ, (1+1+1+1)Φ
  • High-Efficiency and Low-Heat with 2520 Inductor
    • 94% Peak (3.3VOUT, 7.4VIN)
    • 85% Peak (1.1VOUT, 7.4VIN)
  • 1MHz Nominal Switching Frequency per Phase
    • Pseudo-Random ​Spread-Spectrum Options
  • Six Multi-Function GPIOs for Hardware Buck Control
    • Enable, DVS, FPWM, and Power-OK
  • 300mA pMOS LDO (MAX77711 Only)
  • Built-In Flexible Power Sequencing with Soft-Start/Stop
  • Protection Features
    • Hard and Soft-Short Protection, UVLO, and Thermal Protection

Product Details

The MAX77511/MAX77711 are four-phase, 3A/phase, configurable single to quad output, step-down buck regulators for 1s/2s Li+ battery inputs. Output voltage is programmable through an I2C interface between 0.25V and 5.2V. The buck has four combinable 3A switching phases (Φ) for up to four regulated outputs. Phases are configurable to higher-current multiphase outputs: 4Φ, (3+1)Φ, (2+2)Φ, (2+1+1)Φ, or (1+1+1+1)Φ.

Six GPIOs can be purposed for I/O expansion or buck status and control. Pseudo-random spread-spectrum modulation suppresses EMI. Soft-start, soft-stop, and DVS slew times are programmable with I2C. MAX77711 offers a 300mA linear regulator.

MAX77511/MAX77711 are available in a 64-bump, 3.54mm x 3.54mm wafer-level package (WLP).

Applications

  • DSLR, Mirrorless, HD Video, and Action Cameras
  • 2-Cell Li+/Li-ion Equipment
  • Notebook Computers and Robots
  • Embedded Microprocessors, FPGAs, or ASICs

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Evaluation Kits (1)

Documentation & Resources

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  • Data Sheets (1)
  • Reliability Data (1)
  • Videos (1)
  • Technical Articles (1)
    • Document Type

    Tools & Simulations

    SIMPLIS Models

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    3.79M
    MAX77511 SIMPLIS Schematic

    MAX77511 SIMPLIS Schematic

    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.View our quality and reliability program and certifications for more information.

    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    MAX77711AEWB+ Material Declaration Reliability Data 64-WLCSP-N/A
    MAX77711AEWB+T Material Declaration Reliability Data 64-WLCSP-N/A
    MAX77711BEWB+ Material Declaration Reliability Data 64-WLCSP-N/A
    MAX77711BEWB+T Material Declaration Reliability Data 64-WLCSP-N/A
    MAX77711CEWB+ Material Declaration Reliability Data 64-WLCSP-N/A
    MAX77711CEWB+T Material Declaration Reliability Data 64-WLCSP-N/A
    MAX77711DEWB+ Material Declaration Reliability Data 64-WLCSP-N/A
    MAX77711DEWB+T Material Declaration Reliability Data 64-WLCSP-N/A
    MAX77711EEWB+ Material Declaration Reliability Data 64-WLCSP-N/A
    MAX77711EEWB+T Material Declaration Reliability Data 64-WLCSP-N/A
    Wafer Fabrication Data MAX77711 Reliability Data

    Support & Discussions

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