DISCONTINUED SOFTWARE NOTICE - This software / tool has been discontinued.
Software support will continue in most cases. Please contact Renesas support with any questions.

The offline version (iSim:PE) will continue to be fully supported.

Advanced Design Tool for Creating Complex Solutions in 4 Easy Steps

iSim is an easy-to-use, interactive power management and op amp design tool that allows you to quickly select supporting components, build your schematic and validate your design.

Get Started

You must be signed in to renesas.com to access the iSim online designer. After signing in, use the Power or Op Amps tabs to enter your design requirements.

To use our offline simulation tool, simply click on the Offline iSim PE tab and download the software.

Don't have a myRenesas account? Registration is quick, and you’ll be simulating in no time.

Go to iSim

First-time User?


Power Management Simulations

Renesas' iSim simulator for power is an applications-based Renesas Power Management Solution Selector with dynamic input fields to match your input and output requirements. All applicable Renesas devices will be listed and those with a design button are available for online simulation. When available for simulation, a reference schematic will be generated for simulation based on your specifications. 

View all available iSim power simulations.

Operational Amplifier Simulations

Renesas’ iSim simulator for Operational Amplifiers provides application-oriented solution tools using a broad range of Renesas precision and high-speed amplifiers. Tools include an Active Filter Designer, Inverting gain configuration, Non-inverting gain configuration, Transimpedance, Differential Amplifier, Instrumentation Amplifier, Single Stage Low Pass Filter, and Single Stage High Pass Filter. Each tool includes Renesas devices suited to that application along with simulation models in most cases. Taking designer inputs, each tool will help you pick the best Renesas amplifier and deliver designs to hit the desired performance targets. iSim will filter out only the inputs required for the application group you are interested in.

Documentation & Downloads

Title Other Languages Type Format File Size Date
Application Notes & White Papers
AN1599: Designing Integrated FET Regulators using iSim v3 Application Note PDF 892 KB
AN1580: Testing Intersil's Active Filter Designer: Gain and Q Sequencing Impact on Output Noise Application Note PDF 409 KB
AN1243: Getting Started with iSim and iSim:PE Application Note PDF 436 KB
iSIM Active Filter Technical Details Software & Tools - Others PDF 2.11 MB
iSIM Active Filter Designer Overview Software & Tools - Others PDF 1.11 MB

Software & Tools

Title Type Description Company
iSim:PE Offline Simulation Tool Simulator iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs. Renesas