1. Products
  2. Power Management
  3. Switching Regulators
  4. Step-Down (Buck) Regulators
  5. Internal Power Switch Buck Regulators
  6. MAX20004E


Features and Benefits

  • Multiple Functions for Small Size
    • Operating VIN Range of 3V to 36V
    • 15µA Quiescent Current in Skip Mode
    • Synchronous DC-DC Converter with Integrated FETs
    • 400kHz/2.2MHz Frequency versions
    • Fixed 5ms Internal Soft-Start
    • Programmable 1V to 10V Output, or 3.3V and 5.0V Fixed-Output Options Available
    • 98% Duty-Cycle Operation with Low Dropout
    • Active-low RESET output
  • High Precision
    • ±2% Output-Voltage Accuracy
    • Good Load-Transient Performance
  • Robust for the Automotive Environment
    • Current-Mode, Forced-PWM and Skip Operation
    • Overtemperature and Short-Circuit Protection
    • 3.5mm x 3.75mm 17-Pin FC2QFN
    • Symmetrical Pinout with Pin-Selectable Spread Spectrum for Optimized EMI Performance
    • -40°C to +150°C Junction Operating Temperature Range
    • 40V Load-Dump Tolerant
    • AEC-Q100 Qualified

Product Details

The MAX20004E/MAX20006E/MAX20008E are small, synchronous buck converters with integrated high-side and low-side MOSFETs. The device family can deliver up to 8A with input voltages from 3V to 36V, while using only 15µA quiescent current at no load (except for MAX20006EAFOD/VY+ which has FPWM mode only). Voltage quality can be monitored by observing the active-low RESET signal. The devices can operate in dropout by running at 98% duty cycle, making them ideal for automotive applications.

The devices offer fixed output voltages of 5V, 3.9V, or 3.3V. Compensation is internal to the device, providing excellent transient response. Frequency can be 400kHz or 2.1MHz. The devices offer a forced fixed-frequency mode and skip mode with ultra-low quiescent current of 15µA. The device has a pin-selectable (SSEN) spread-spectrum enable to further assist systems designers with better EMC management.

The MAX20004E/MAX20006E/MAX20008E are available in a small, 3.5mm x 3.75mm, 17-pin FC2QFN package and use very few external components.


  • ADAS
  • Distributed DC Power Systems
  • Navigation and Radio Head Units
  • Point-of-Load Applications in Automotive

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 (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
MAX20004EAFOA/VY+ Material Declaration Reliability Data 17-LFCSP_SS-3.5X3.5X0.70
MAX20004EAFOA/VY+T Material Declaration Reliability Data 17-LFCSP_SS-3.5X3.5X0.70
MAX20004EAFOB/VY+ Material Declaration Reliability Data 17-LFCSP_SS-3.5X3.5X0.70
MAX20004EAFOB/VY+T Material Declaration Reliability Data 17-LFCSP_SS-3.5X3.5X0.70
Wafer Fabrication Data

Sample & Buy

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Buy Now Pricing

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List Pricing

(*)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.