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DC1811B-B - LTM4676A Demo Board | Step-Down μModule Regulator with PMBus, 4.5V ≤ VIN ≤ 17V, Vout0 = 1V @ 13A, Vout1 = 1.8V @ 13A

Demonstration circuit 1811B-B is a dual-output, high efficiency, high density, μModule® regulator with 4.5V to 17V input range. Each output can supply 13A maximum load current. The demo board has a LTM®4676A μModule regulator, which is a dual 13A or single 26A step-down regulator with PMBus power system management. Please see LTM4676A data sheet for more detailed information.

DC1811B - Schematic


Companion Demo Boards

DC1613A - USB-to-PMBus Controller for Use with LTpowerPlay
DC2086A - Powered Programming Adapter for Digital Power System Management Products



LTpowerPlay is a powerful development environment supporting Linear Technology's Digital Power System Management (PSM) products, providing unprecedented diagnostic and debug features.

Click here to download LTpowerPlay


The LTpowerCAD design tool is a complete power supply design tool program that can significantly ease the tasks of power supply design. It guides users to a solution, selects power stage components, provides detailed power efficiency, shows quick loop bode plot stability and load transient analysis, and can export a final design to LTspice for simulation. Click here to download LTpowerCAD

To open the project file for this circuit:

  • Step 1: If you have not installed LTpowerCAD on this computer, download and install LTpowerCAD
  • Step 2: Once LTpowerCAD is installed, click on the link(s) below to open the project file
  • Step 3: If LTpowerCAD does not automatically open after clicking the link above, you can open the project file by right clicking on the link and selecting "Save Target As." After saving the file to your computer, start LTpowerCAD and open the project file by selecting 'Open Project' from the 'File' menu