ADP1050:  Digital Controller for Isolated Power Supply with PMBus Interface

Product Details

Product Status:Recommended for New Designs

The ADP1050 is an advanced digital controller with a PMBus™ interface targeting high density, high efficiency dc-to-dc power conversion. This controller implements voltage mode control with high speed, input voltage feedforward operation for enhanced transient and noise performance. The ADP1050 has four programmable pulse-width modulation (PWM) outputs capable of controlling most high efficiency power supply topologies, with the added control of synchronous rectification (SR).

The ADP1050 implements several features to enable a robust system of parallel and redundant operation for customers who require high availability. The device provides synchronization, prebias startup, and conditional overvoltage techniques to identify and safely shut down an erroneous power supply in parallel operation mode.

The ADP1050 is based on flexible state machine architecture and is programmed using an intuitive graphical user interface (GUI). The easy to use GUI reduces design cycle time and results in a robust, hardware coded system loaded into the built-in EEPROM. The small size (4 mm × 4 mm) of the LFCSP package makes the ADP1050 ideal for ultracompact, isolated dc-to-dc power module or embedded power designs.


  • High density, isolated dc-to-dc power supplies
    Intermediate bus converters
    High availability parallel power systems
  • Server, storage, industrial, networking, and communications


  • Versatile digital voltage mode controller
  • High speed input voltage feedforward control
  • 4 pulse-width modulation (PWM) logic outputs with 625 ps resolution
  • Switching frequency:
    49 kHz to 625 kHz
  • Frequency synchronization as slave device
  • Pulse skipping power saving mode
  • Prebias startup
  • Conditional overvoltage protection
  • Extensive fault detection and protection
  • PMBus compliant
  • Graphical user interface (GUI) for ease of programming
  • See datasheet for additional features

Typical Applications Circuit Diagram for ADP1050

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADP1050-51 Evaluation Software
This software is used to program the ADP1050-51. It is truly graphic and interactive. Power design engineers with no prior programming experience can use the software to monitor and quickly adjust functions like PWM timings, frequency, filter settings, protection limits, etc.
Evaluation Software HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

ADP1050 Model Options
Price Table Help

The USA 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. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADP1050 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
ADP-I2C-USB-Z Status: Production USB to I2C Adapter $250.00 Yes -
ADP1050DC1-EVALZ Status: Production ADP1050 Daughter Card $100.00 Yes -
ADP1051-240-EVALZ Status: Production ADP1051 240W Evaluation Board $300.00 Yes -

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.

Check Inventory & Purchase

View Sales and Distribution Offices

content here.
content here.

Review this Product