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DC2230A-B - LTM4636-1 Demo Board | Buck µModule Regulator with OV/Temp Protection, Stacked Inductor; 4.7V ≤ VIN ≤ 15V, Vout = 1V @ 40A

Demonstration circuit 2230A-B features the LTM®4636-1EY, a 40A high efficiency, switch mode step-down power μModule® regulator with overtemperature and input/output overvoltage protection. The input voltage range is from 4.7V to 15V. For a 4.7V to 5.5V input voltage range, short PVCC pin to the VIN pin with R8 = R21 = 0Ω and remove R17. The output voltage range is 0.6V to 3.3V. Derating is necessary for certain VIN, VOUT, frequency and thermal conditions. The board operates in continuous conduction mode with heavy load conditions. For high efficiency at low load currents, the MODE_PLLIN jumper selects pulse-skipping mode for noise sensitive applications or Burst Mode® operation in less noise sensitive applications. The MODE_PLLIN pin also allows the LTM463-16 to synchronize to an external clock signal. DC2230A-B has the option of choosing either internal or external compensation circuit for the LTM4636-1. Tying the PHASMD pin to a different voltage generates a certain phase difference between the MODE_PLLIN and CLKOUT pins. The LTM4636-1 data sheet must be read in conjunction with this demo manual prior to working on or modifying demo circuit DC2230A-B.

DC2230A-B - Demo Board Image

 


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

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