Fast Prediction of Worst-Case Voltage Droops in Power Distribution Networks

Building on well-known system theoretical results, simple numerical tools are introduced for the evaluation of the worst-case voltage droops in Power Distribution Networks (PDN), in various Power Integrity verification scenarios. Given a PDN model and suitable bounds on load current values and slew rates, the proposed approach provides an explicit bound of the worst-case voltage droop, as well as the particular input current waveforms that produce it. Validations are provided based on two realistic PDN models.