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Linear Technology Corporation logo.svg
Developer(s) Linear Technology
Stable release
XVII / November 18, 2016; 18 months ago (2016-11-18)[1]
Operating system Windows, OS X
Available in English
Type Electronic design automation
License Freeware[2][3]

LTspice is freeware[2][3] computer software implementing a SPICE simulator of electronic circuits, produced by semiconductor manufacturer Linear Technology (LTC), now part of Analog Devices.[4][5]


LTspice IV provides a schematic capture and waveform viewer with enhancements and models to speed the simulation of switching regulators. Supplied with LTspice IV are macro models for 80% of LTC's switching regulators and operational amplifiers, transistors, MOSFETs, and passive components.

LTspice IV is node-unlimited and third-party models can be imported. Circuit simulations based on transient, AC, noise and DC analysis can be plotted as well as Fourier analysis. Heat dissipation of components can be calculated and efficiency reports can also be generated.

LTspice IV is used within LTC, and by many users in fields including radio frequency electronics, power electronics, digital electronics, and other disciplines. LTspice IV does not generate printed circuit board (PCB) layouts, but netlists can be imported into layout programs. While LTspice does support simple logic gate simulation, it is not designed specifically for simulating logic circuits.

LTspice was originally called SwitcherCAD and is sometimes still called by that name. The software is maintained by Mike Engelhardt. The application is written for Microsoft Windows but, since 2003,[6] it will run under the Wine Windows compatibility layer under Linux. Since 2013 there is also a native OS X version available, albeit with a crippled user interface that lacks essential features such as the command toolbar. From version IV LTspice requires at least a Pentium 4 processor and Windows 2000 or later.[7]

In 2016 LTspice XVII was released. It runs on 32- or 64-bit editions of Windows 7, 8, and 10.[8]

See also


  1. ^
  2. ^ a b Mike Engelhardt: LTspice IV Help -> F.A.Q. -> License and Distribution. (Help of software version 4.19u of 4 September 2013)
  3. ^ a b Mike Engelhardt: LTspice IV Help -> Introduction -> License Agreement/Disclaimer. (Help of software version 4.19u of 4 September 2013)
  4. ^ LTspice IV Circuit Simulation Schematic Capture Tool
  5. ^ Pell, Rich (January 13, 2009). "Free SPICE software exploits multicore processors". EE Times. Retrieved 2011. 
  6. ^ news:sci.electronics.cad: LTspice/SwitcherCAD III now runs on Linux accessdate=September 27, 2013
  7. ^ news:sci.electronics.cad: Announce: Multi-threaded LTspice accessdate=September 27, 2013
  8. ^

External links

Linear Technology

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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