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Frequently Asked Questions

Why is EE-Sim being retired?

EE-Sim is being retired for two reasons. First, ADI Power Studio Designer is our next-generation power design environment and the planned successor to EE-Sim. Second, EE-Sim is a third-party, vendor-hosted tool that has reached end-of-life, and the vendor's shutdown of the platform accelerated the transition timeline. Your existing designs have been preserved and are available in Power Studio Designer using the same MyAnalog account.

Where are my designs?

Power Studio Designer has imported the EE-Sim designs it currently supports. Sign in and go to Library > My Designs to find them. Designs that use parts we can't import yet appear as Pending — hover the Pending pill and click Request Import to ask us to prioritize importing one.

Do I need a new account?

No. Continue using the same MyAnalog account you used with EE-Sim. Corporate SSO (Azure AD) is also supported.

Are all EE-Sim parts supported?

Not yet. Power Studio Designer currently has 374+ solutions across the unified Maxim and LT catalog. Part support is being expanded on an ongoing basis, and additional parts will continue to be onboarded. If a design uses a part that isn't yet supported, it appears as Pending until we import it. You can hover the Pending pill and click Request Import to prioritize it.

What does a "Pending" design mean?

A Pending design is an EE-Sim design that Power Studio Designer can't import yet because it uses a part that isn't in the unified catalog. Pending designs appear in Library > My Designs but can't be opened, edited, or analyzed until they're imported. We're continuing to onboard parts and will eventually import all designs. To ask us to prioritize a specific design, hover its Pending pill and click Request Import, which opens a Technical Support request.

Why are my Support / Configuration components not populated (BIAS capacitors, pullup resistors, SS capacitors, etc.)?

Power Studio Designer doesn't yet support editing of Support / Configuration components — components that configure the IC but don't affect loop response, such as BIAS capacitors, pullup resistors, SS capacitors, etc. For imported EE-Sim designs, the values and vendors for these components have been preserved and will become accessible once these components are enabled. No action is needed on your end.

What if I can't find a design?

Confirm you're signed in with the same MyAnalog account used for EE-Sim and check Library > My Designs. If a design uses a part we can't import yet, it will appear as Pending. If a design still doesn't appear, contact Power Studio Designer Technical Support for help.

Why are my efficiency numbers different from EE-Sim?

Power Studio Designer uses real-time analytical calculations rather than a full circuit simulation for built-in results, so values may differ slightly from EE-Sim's SIMPLIS-based simulations. For exact correlation, export your design to LTspice or SIMPLIS and run a full simulation.

Can I run simulations online in Power Studio Designer?

Not yet. Power Studio Designer uses a built-in analytical engine for instant results (efficiency, loss, loop stability). For full circuit simulation today, export your design to LTspice or SIMPLIS. Online simulation with LTspice and SIMPLIS is a planned feature.

Why does Power Studio Designer look different?

Power Studio Designer is a modern, IC-level power design environment with guided workflows, component recommendations, and instant performance analysis. Some tasks are presented differently than in EE-Sim — watch the Getting Started video for a quick tour, or see the Workflow Comparison for a detailed mapping.

Can I still use OASIS?

Yes. The OASIS desktop simulator continues to be available for offline simulation workflows and will be maintained as part of ADI's power management tools portfolio. You can also export designs from Power Studio Designer directly to SIMPLIS format.

What about bench measurement correlation?

EE-Sim's OASIS could import bench data and overlay it on simulation results. Power Studio Designer does not have this capability. Use LTspice alongside your bench equipment for manual correlation.

Where do I get help?