Switchers Made Simple® Software

Note: The Switchers Made Simple design computations have been incorporated into National Semiconductor's award winning WEBENCH On Line Design Tool. The WEBENCH Design Tool also includes:

• Design optimization for footprint and efficiency
• Spice based electrical simulation
• Board level thermal simulation
• The ability to get custom prototype kits shipped overnight for SMS devices.
• In addition, the WEBENCH design tool is continuously updated with National Semiconductor's latest regulators and passive component libraries

The WEBENCH design environment offers an end to end power supply design and prototyping system which saves time and accelerates the design process.

Switchers Made Simple® V6.3.1 January 17, 2005

Switchers Made Simple V6.3.1 supports the 4th generation SIMPLE SWITCHER converters listed below. Additional devices will be added in future releases.

"Switchers Made Simple" Version 6.3.1 is compatible with Windows 2000/Me/XP and requires 30 MB of disk space. We recommend at least 256 MB of RAM and a 900MHz processor.

Supported Products:

Installation Instructions

Download the following zip file: SMS6.3.1.zip (24.6 MB)
Version 6.3 can be installed in parallel with older versions; older versions do not need to be uninstalled.
Save the file to your Desktop. Netscape Users: A window will pop up asking for what you want to do with the file you are starting to download. Choose the option to save the file. Internet Explorer users: A window will pop up asking what you would like to do with this file; choose the option to save it to disk.
Go to your Desktop and unzip the file you have downloaded to a temporary folder. Open the folder and run Setup.exe and then follow the installation procedure.
You can start SMS6.3 using the Start --> Programs --> SMS6.3 menu.

Results from the off line Switchers Made Simple software will not necessarily agree with results from the on line WEBENCH software. This is because the WEBENCH software is kept more up to date and uses a more updated component library.

Switchers Made Simple V6.24 supports the Buck, Boost and Flyback SIMPLE SWITCHER converters listed below. It functionally combines the calculation tools of the earlier Switchers Made Simple V4.3 and LM267x Made Simple V2.01 with the "Solution Selector" tool originally developed for online use in the WEBENCH environment. Version 6.24 includes all the features and solutions of V6.1, plus LM259xHV, and LM2698 designs, reduced download size and an improved install procedure.

"Switchers Made Simple" Version 6.24 is compatible with Windows 95, 98, NT4, etc. and requires 20 Mb of disk memory. We recommend at least 64 Mb of main memory.

Click here for Release/Install notes

Supported Products:

Installation Instructions

SMS6.24 for systems with SMS6.1/6.0 previously installed:
Please uninstall SMS6.1/6.0 using the add/remove programs item in the Windows control panel then follow the instructions below.

SMS6.24 for systems without SMS6.1/6.0 installed:
Download the following installation file: SMS6.24.EXE (10.7 Mb)

Save the file to a convenient directory (such as c:/temp). Netscape Users: A window will pop up asking for what you want to do with the file you are starting to download. Choose the option to save the file. Internet Explorer users: A window will pop up asking what you would like to do with this file; choose the option to save it to disk.

Go to your temporary directory and run the SMS6.24 install file you have selected, then follow the installation procedure.

You can start SMS6.24 using the Start --> Programs menu.

Results from the off line Switchers Made Simple software will not necessarily agree with results from the on line WEBENCH software. This is because the WEBENCH software is kept more up to date and uses a more updated component library.

Version 4.3 supports the following regulators for buck, boost, and flyback converter designs, including the new military-temperature range version of LM2595 (for inverting designs, please consult the datasheets for the buck regulator products). It requires MS-DOS 3.3 or later, 521K conventional RAM and 1M of extended RAM.

Click here for Release/Install notes

Supported Products:

Installation instructions for SMS4.3:
Download the following installation file: SMS4.3.EXE (196KB)

This file contains the compressed installation for version 4.3 of Switcher Made Simple. After downloading, run SMS43.EXE in the subdirectory where you would like the program stored. Start Switchers Made Simple by running SIMPLE.EXE, which is created by SMS43.EXE.

Results from the off line Switchers Made Simple software will not necessarily agree with results from the on line WEBENCH software. This is because the WEBENCH software is kept more up to date and uses a more updated component library.

Version 3.3 supports the following additional regulators. It requires MS-DOS 3.3 or later, 521K conventional RAM and 1M of extended RAM.

Supported Products:

Installation instructions for SMS3.3:
Download the following installation file: SMS3.3.EXE (143KB)

This file contains the compressed installation for version 3.3 of Switcher Made Simple.  After downloading, run SMS33.EXE in the subdirectory where you would like the program stored. Start "Switchers Made Simple" by running SIMPLE.BAT, which is created by SMS33.EXE.

Results from the off line Switchers Made Simple software will not necessarily agree with results from the on line WEBENCH software. This is because the WEBENCH software is kept more up to date and uses a more updated component library.

For further information regarding the use of Switchers Made Simple contact Technical Support.