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DC2268A-E - LTM4630EY-1 Demo Board | 1.5" x 1.2" PCB, Dual 18A/Single 36A Buck μModule Regulator, 4.5V≤VIN≤15V, Vout1 = 1V @ 18A, Vout2 = 1.5V @ 18A

Demonstration circuit 2268A-E is a high efficiency, high density, dual 18A, switch mode step-down power supply on a compact 1.5" × 1.2" PCB. It features the LTM4630-1 μModule regulator. The input voltage is from 4.5V to 15V. The output voltage is programmable from 0.6V to 1.8V. DC2268A-E can deliver up to 18A maximum in each channel. With the help of external compensation, ±3% transient accuracy can be achieved with 25% load step. As explained in the data sheet, output current derating is necessary for certain VIN, VOUT, and thermal conditions. The board operates in continuous conduction mode in heavy load conditions. For high efficiency at low load currents, the resistor jumper (R1/R2) selects pulse-skipping mode for noise sensitive applications or Burst Mode® in less noise sensitive applications. Two outputs can be connected in parallel for a single 36A output solution with optional jumper resistors.

DC2268A - Schematic

 


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

To launch a ready to run LTspice demonstration circuit for this part:

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

To explore other ready to run LTspice demonstration circuits, please visit our Demo Circuits Collection.

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