Device-Specific Power Delivery Network (PDN) Tool 2.0 User Guide

ID 683293
Date 8/24/2021
Public
Document Table of Contents

1.2.2.1.3. Meeting Target Impedance when Entering 0 A into the PDN Tool

You may not be able to meet the target impedance if you enter 0 A into the Intel® Power Distribution Network (PDN) tool.

If you enter 0 A into some low current power supply pin types, such as VCCBAT, the PDN tool calculates a high effective impedance. Other power supply pin types may also show this problem.

The minimum allowable non-zero current entry into the Intel PDN Tool is 0.001 A. If you enter 0 A for currents below 0.001 A, a divide-by-zero or multiply-by-zero problem can occur.

To avoid this problem, enter 0.001 A to calculate decoupling for currents less than 0.001 A. Entering 0.001 A does not significantly burden the decoupling solution.