DC2007A-A - LTM4630 Demo Board | 70A Polyphase Step-Down (2x LTM4630), 4.5V ≤ VIN ≤ 15V, Vout = 0.9V to 1.8V @ 70A

Demonstration Circuit 2007A-A features a PolyPhase® design using the LTM®4630EV, the high efficiency, high density, dual 18A, switch mode step-down power μModule® regulator. The input voltage is from 4.5V to 15V. The output voltage is jumper selectable from 0.9V to 1.8V. The DC2007A-A can deliver a nominal 70A output current. As explained in the data sheet, output current derating is necessary for certain VIN, VOUT, and thermal conditions. The LTM4630 on the DC2007A-A always operates in continuous conduction mode. The switching frequency can be programmed through a resistor or can be synchronized to an external clock signal. The board allows the user to program how its output voltage ramps up and down through the TRACK pin.

Software

LTspice

LTspice^® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice

LTpowerCAD

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
- LTM4630 Demo Circuit - High Efficiency 4-Phase 70A Step-Down Regulator (4.5-15V to 1V @ 70A)
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