1. Products
  2. Power Management
  3. Switching Regulators
  4. Step-Down (Buck) Regulators
  5. Internal Power Switch Buck Regulators
  6. MAX77504


Features and Benefits

  • 3A Single-Channel Buck Regulator
  • 2.6V to 14V Input Voltage
  • 0.6V to 6V Output Voltage Range
  • 0.5MHz to 1.5MHz Fixed-Frequency Switching Options 
  • High Efficiency, Low IQ Extends Battery Life
    • 94% Peak Efficiency at 7.4VIN, 3.3VOUT (2520 Inductor)
    • 10μA ISUP (12VIN, 1.8VOUT)
    • OUT Powers VL Automatically (VOUT > 1.7V) for Low IQ
  • Enable Pin (EN) for Direct Hardware Control
  • Extenal Clock Synchronization Is Available Through the FPWM/SYNC Pin
  • Power-OK Output (POK) Monitors VOUT Quality (See Ordering Information)
  • Protection Features
    • Cycle-by-Cycle Inductor Current Limit
    • Short-Circuit Hiccup Mode, UVLO, and Thermal Shutdown Protection
    • Soft-Start 
  • FC2QFN or WLP Package Option
    • 2.5mm x 2.5mm (0.6mm max. height) 12-Lead FC2QFN, 0.5mm Pitch
    • 1.7mm x 1.7mm (0.7mm max. height) 16-Bump WLP, 0.4mm Pitch, 4 x 4 Array
  • All WLP Package Bumps (Except POK) Routeable on a Non-HDI PCB

Product Details

The MAX77504 is a synchronous 3A step-down DC-DC converter optimized for portable 2-cell and 3-cell battery-operated applications. The converter operates on an input supply between 2.6V and 14V. Output voltage is adjustable between 0.6V and 6V with external feedback resistors. The device features a low-IQ SKIP mode that allows excellent efficiency at light loads. The MAX77504 can be sychronized by driving the FPWM pin with an external clock.

Dedicated enable, power-OK, and FPWM pins allow simple hardware control. The SEL input easily configures switching frequency, gain, and output active discharge option. Built-in undervoltage lockout (UVLO), output active discharge, cycle-by-cycle inductor current limit, thermal shutdown, and short-circuit protection ensure safe operation under abnormal operating conditions.

The MAX77504 is offered in a small 1.7mm x 1.7mm, 16-bump, 0.4mm pitch wafer-level package (WLP) or a 2.5mm x 2.5mm, 12-lead, 0.5mm pitch flip-chip QFN (FC2QFN).


  • 1- to 3-Cell Li+/Li-ion Battery-Powered Devices
  • Professional Radio, Handheld Computers
  • Mirrorless Cameras, DSLR, and Notebook Computers
  • Portable Scanners, POS Terminals, Printers
  • Space-Constrained Portable Electronics

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 (2)

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.


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
MAX77504AAFC+ Material Declaration Reliability Data 12-LFCSP-2.5X2.5X0.55
MAX77504AAFC+T Material Declaration Reliability Data 12-LFCSP-2.5X2.5X0.55
MAX77504AAWE+ Material Declaration Reliability Data 16-WLCSP-N/A
MAX77504AAWE+T Material Declaration Reliability Data 16-WLCSP-N/A
MAX77504BAWE+ Material Declaration Reliability Data 16-WLCSP-N/A
MAX77504BAWE+T Material Declaration Reliability Data 16-WLCSP-N/A
Wafer Fabrication Data MAX77504 Reliability Data

Sample & Buy

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Evaluation Boards

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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.