Model libraries for Linear Technology SwitcherCAD III*

SwitcherCAD™ III is a high performance Spice III simulator that simplifies the design of switching regulators. The software is provided free by Linear Technology at this web address:
http://www.linear.com/designtools/software/

SwitcherCAD III includes a library of models for a limited number of Coilcraft inductor models. This library file is called “CCI2005” and is updated periodically.

Coilcraft also offers a larger (1400+) and more current selection of SwitcherCAD III models that can be downloaded below. These are the most up-to-date versions and include models for many of our newest products, which are not in the file posted on the Linear Technology web site.

For convenience, the models are organized into smaller libraries that cover similar product families. Or you can download a single large file with all available models.

Library files for download
Using Coilcraft model libraries
Model construction

Library files for download

Right-click on the desired file(s) and save it to the SwitcherCAD III component library on your computer. The path will typically be C:\Program Files\LTC\SwCADIII\lib\cmp.

CCI_All.ind Includes all of the models below
CCI_Chip.ind
 
Chip inductors
0603PS, 0805PS, 1008PS, 1812PS
0603LS, 0805LS, 1008LS, 1812LS
CCI_High_Current.ind
 
SM high current power inductors
HCT, MLC, MVR, SER, SLC
CCI_Low_Profile.ind SM low profile power inductors
LPO, LPS
CCI_Shielded.ind
 
SM shielded power inductors
DS, DT, DH, MOS, MSS
CCI_Unshielded.ind
 
SM unshielded power inductors
DO, ME, SD
CCI_Through_Hole.ind

 
Leaded RF and power inductors
132, 90, DC1012, DR, PCH, PCV, RFB
CCI_2005.ind Latest library provided to Linear

 

Using Coilcraft model libraries

To access the desired Coilcraft library and leave the standard library as the default

Use SwCADIII* to create the schematic as you would like it.

Click on the “Open” icon on the tool bar, then click on the folder labeled “lib”, then the folder labeled “cmp”, then the desired “CCI xxxxx.ind” file. Minimize the opened library file.

Right-click on the inductor you want to modify. In the box that pops up, click on “Select Inductor” and pick the desired Coilcraft inductor. If it is not in this view, click on “Select All Inductors in Database”.

To automatically be asked which library to use

Go to “C:\Program Files\LTC\SwCADIII\lib\cmp”. Rename the standard library “standard.ind” to something else (LT standard.lib for example).

Use SwCADIII to create the schematic as you would like it.

Right-click on the inductor you want to modify. In the dialog box, click on “Select Inductor” to see the available component libraries, pick the one you want to use, then select the desired inductor model.

To make a Coilcraft library the default library

Go to “C:\Program Files\LTC\SwCADIII\lib\cmp”. Rename the standard library “standard.ind” to something else (LTC standard.lib for example). Rename the selected Coilcraft library “standard.ind”

Use SwCADIII* to create the schematic as you would like it.

When you right-click on the inductor, you will see a box that allows you to edit the inductor. Click on “Select Inductor” to open the list of Coilcraft models and select the one to use.

Model construction

The schematic below is the model structure used in SwitcherCAD III.

 

*SwitcherCAD, SwCAD and LTspice are trademarked by Linear Technology Corporation