# Qualcomm^®^ PDN Checker Reference Guide

- [Overview](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_overview.html)
    - [Key Features](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_overview.html#key-features)
    - [What You’ll Find in This Guide](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_overview.html#what-you-ll-find-in-this-guide)
- [Getting Started](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_getting_started.html)
    - [Sign Up](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_getting_started.html#sign-up)
    - [Log In](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_getting_started.html#log-in)
    - [Dashboard](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_getting_started.html#dashboard)
    - [Job History](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_getting_started.html#job-history)
- [User Guide](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_user_guide.html)
    - [Jobs](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_user_guide.html#jobs)
- [Frequently Asked Questions](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_faq.html)
    - [General](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_faq.html#general)
    - [What are the PCB file formats supported?](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_faq.html#what-are-the-pcb-file-formats-supported)
    - [What is the recommendation on the board configuration description?](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_faq.html#what-is-the-recommendation-on-the-board-configuration-description)
    - [Is it recommended to do simulations with all the devices at once?](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_faq.html#is-it-recommended-to-do-simulations-with-all-the-devices-at-once)
    - [How much time does it take for the simulation?](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_faq.html#how-much-time-does-it-take-for-the-simulation)
    - [What is the allowed format for the custom capacitor models?](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_faq.html#what-is-the-allowed-format-for-the-custom-capacitor-models)
    - [What if there is no matching VRM port found in the port selection?](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_faq.html#what-if-there-is-no-matching-vrm-port-found-in-the-port-selection)
    - [How to select a capacitor for VRM?](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_faq.html#how-to-select-a-capacitor-for-vrm)
    - [What to do if certain functions are not being used from the device?](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_faq.html#what-to-do-if-certain-functions-are-not-being-used-from-the-device)
    - [What is a rail and what is a port?](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_faq.html#what-is-a-rail-and-what-is-a-port)
    - [How to understand the plot?](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_faq.html#how-to-understand-the-plot)
    - [I get a message about a mismatch in stack-up between the board file and board configuration.](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_faq.html#i-get-a-message-about-a-mismatch-in-stack-up-between-the-board-file-and-board-configuration)
    - [Do we need to assign models for PMIC and SOC?](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_faq.html#do-we-need-to-assign-models-for-pmic-and-soc)
    - [What is the temperature setting at which the simulation is run?](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_faq.html#what-is-the-temperature-setting-at-which-the-simulation-is-run)
    - [I get a huge list of components for which the model needs to be assigned; some of them seem irrelevant.](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_faq.html#i-get-a-huge-list-of-components-for-which-the-model-needs-to-be-assigned-some-of-them-seem-irrelevant)
    - [Where can I get details on Vdrop calculations?](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_faq.html#where-can-i-get-details-on-vdrop-calculations)
- [Contact Us](https://docs.qualcomm.com/doc/80-99775-1/topic/pdn-checker_contact.html)

Last Published: Aug 04, 2026

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