Model of the Month
Modeling a digital low-dropout (LDO) regulator
This application note explains how to model a basic digital LDO and simulate its line, load, reference transient and DC/AC regulation characteristics.
November 2024
Tip of the Month
A common mistake when modeling a high-pass filter with the 'filter' primitive
For high-pass filters, the 'gain' parameter of the 'filter' primitive does not directly define the passband gain. This Q&A post explains how to set its parameters correctly.
Primitive of the Month
filter
This core primitive of XMODEL can model a linear filter with arbitrary numbers of poles and zeros.
Latest Issues
December 2025
Season's Greetings, Checking a Clocked Comparator's Correct Output, and More
November 2025
Checking the Settling of an Analog Signal, Handling Inherited Nets with Legacy SPICE Netlisters, and More
October 2025
A UVM Testbench for Worst-Case Analysis Using Bayesian Optimization and More
September 2025
XMODEL at DVCon Europe, Evaluating Transceivers with Multi-Drop Channels, and More
August 2025
Modeling Variations in ReRAMs, Supporting RNM Nettypes, and More