Webinar – Topology is Just the Start: Building Reliable Wide-Input SEPIC Converters

As modern power systems evolve, engineers are increasingly challenged to build converters that remain stable and efficient—even when input conditions are far from ideal. With supply voltages becoming more dynamic and architectures more flexible, the pressure is on to create solutions that operate across wide ranges without introducing unnecessary design complexity.

For many, the SEPIC (Single-Ended Primary Inductor Converter) topology becomes the go‑to choice. Its ability to maintain a non‑inverting output, regardless of whether the input is above, below, or crossing the output voltage, makes it invaluable in unpredictable power environments. But selecting the SEPIC topology is only the first step—achieving a robust, production‑worthy design requires a deep understanding of component behavior, electrical stress, and practical design limits.

Piyu Dhaker, Staff Applications Engineer with Analog Devices, Inc., and Simon Ruening

Global Technical Marketing Manager for Yageo Group will explore the elements that make SEPIC topology a frontline option.

What you’ll learn

• Electrical Stress, Ripple Current, EMI, and Thermal Performance: Examine how these interrelated factors influence converter reliability and efficiency. You’ll see how design decisions in one area can create unintended consequences in another—and how to balance them effectively.
• Inductor Coupling Strategies & Coupling Capacitor Behavior: The choice between coupled and uncoupled inductors, along with the performance of the SEPIC coupling capacitor, can make or break your design. Learn how these components affect noise, efficiency, and long‑term stability, and why they often become the limiting factors as a design moves toward production.
• Practical Constraints & Real‑World Component Limitations: Idealized models rarely survive real operating conditions. We’ll walk through the practical realities of SEPIC design—component derating, thermal headroom, layout limitations, and how to mitigate these challenges in actual hardware.
• Advanced Tools for Precision Design: See how LTpowerCAD, LTspice, and the YSIM Capacitance Tool can streamline the design process, improve simulation accuracy, and help you predict real‑world performance with confidence.

Whether you’re refining an existing system or architecting a new power stage from scratch, this webinar will give you the insights needed to design reliable, efficient SEPIC converters that thrive in unpredictable environments.

When: Wednesday, April 29, 2026, 10:00 AM CDT

Length: 1 hour

Register here to attend or receive the full recording at any time following the event: https://event.on24.com/wcc/r/5244708/69022771FF31B8B4816E9469ECDB0C68?partnerref=blog