1. Products
  2. Power Management
  3. Smart Power Stages (FET and FET Driver)
  4. MAX20790


Features and Benefits

  • Space-Optimized Solution
    • Monolithic, Smart Power Stage
    • Phase-Current Steering for Thermal Balance
    • Small Footprint: ~24mm2
  • 95.6% Peak Efficiency
    • 6-phase, 400kHz, 12V VIN, 1.8V VOUT
  • 300kHz to 1.3MHz Switching Frequency
  • Telemetry and Fault Reporting through Controller IC PMBus
    • Accurate Temperature Monitoring and Reporting
    • Accurate Per-Phase Current Reporting
    • Fault_ID Indicates Type of Fault
  • Advanced Self-Protection Features
    • Supply and Boost UVLO Protection
    • Boost Refresh
    • VX Short and Overtemperature Shutdown
    • Fast Overcurrent Protection

Product Details

The MAX20790 is a feature-rich smart power-stage IC designed to work with Maxim’s controllers to implement a high-density multiphase voltage regulator. Multiple smart power-stage ICs plus a controller provide a compact synchronous buck converter that includes accurate individual phase current and temperature reporting through PMBus™. These smart power-stage devices include fault-protection circuits for overtemperature, VX short, and supply undervoltage lockout (UVLO). The MAX20790 immediately shuts down on fault detection, communicating the Fault_ID to the controller.

Monolithic integration and advanced packaging technology allow high-switching frequencies with significantly lower losses than conventional implementations. Phase-shedding and discontinuous conduction modes (DCM) optimize efficiency over a wide range of load currents.

The MAX20790 is available in a 12-pin FC2QFN package with an exposed top-side thermal pad (3.25mm x 7.4mm).


  • High Current Multiphase-Voltage Regulators
  • - Networking ASICs
  • - AI and Machine Learning ASICs
  • - Graphics Processors
  • Servers, Workstations, and Enterprise Storage
  • Communications and Networking Equipment
  • AI and Machine Learning

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 (3)

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
MAX20790GFC+ Material Declaration Reliability Data 12-LFCSP-7.4X3.25X0.88
MAX20790GFC+T Material Declaration Reliability Data 12-LFCSP-7.4X3.25X0.88
Wafer Fabrication Data

PCN-PDN Information

Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.

Sample & Buy

Ordering FAQs

See our Ordering FAQs for answers to questions about online orders, payment options and more.


Buy Now Pricing

(**) Displayed Buy Now Price and Price Range is based on small quantity orders.


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.


Lead Times

Please see the latest communication from our CCO regarding lead times.



Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Price Table Help


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.