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IC manufacturers ADI Power by Linear

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ADI Power by Linear ADP1055 | Demoboard ADP1055-EVALZ

Evaluating the 240 Watts ADP1055 Digital Controller for Isolated Power Supply with PMBus Interface


TopologyBuck Converter
Input voltage38-60 V
Switching frequency125 kHz
Output 112 V / 20 A
IC revision00


This evaluation board, together with a daughter card, allows you to evaluate the ADP1055 as a power supply application.With the USB to I2C connector, and the graphical user interface (GUI), the ADP1055 on the evaluation board can be interfaced with a PC via a USB port. The evaluation board is set up to act as an isolated PSU with a rated load of 12 V, 20 A from a 38 V dc to 60 V dc source. Connectors on the evaluation board provide synchronization,as well as share bus and PMBus™ interfaces, allowing directparallel evaluation when multiple evaluation boards are connected in parallel to a common bus. Multiple test points allow easy access to all critical points/pins.


  • Full support evaluation kit for the ADP1055
  • 240 W full bridge topology (adjustable to phase shifted full bridge topology)
  • Rated power of 12 V dc, 20 A PMBus Revision 1.2 compliant with PEC and extended manufacturer specific commands
  • 32-bit password protection with command masking
  • 64 address selections (16 base addresses, expandable to 64) 6 PWM control signals, 625 ps resolution
  • Duty cycle double update rate
  • Fast line voltage feedforward
  • Redundant programmable OVP
  • Frequency synchronization Soft-start and soft-stop functionality
  • Droop current sharing
  • On-board tests for housekeeping functions
  • PMBus communication
  • Software GUI

Typical applications

  • Isolated dc-to-dc power supplies and modules / Redundant power supply systems

More information


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