The increasing prevalence of portable electronic devices with rechargeable batteries has created a need for convenient and reliable charging options. Unfortunately, the lack of standardization in charger and adapter equipment has resulted in the need for multiple chargers for different devices, which can be inconvenient for end-users. To address this issue, new challenges have arisen that require travel chargers to be designed to meet the demands of modern electronics. These devices need to be compact, lightweight, and efficient while still providing improved charging power, battery capacity, and charging time.

With that, USB power delivery (USB-PD) technology has emerged as the ideal solution. Together with the introduction of GaN devices, Infineon’s CoolGaN™ technology sets a new standard for operations at high switching frequencies allowing the volume of passive components to shrink, improving overall density. A compact-sized charging solution with higher power is now here to make charging faster and more efficient, simplifying the end-user experience.

However, implementing USB-PD technology brings about new complexities to be addressed. This whitepaper demonstrates the capabilities of Infineon’s available system solutions and acts as a guideline for design engineers to find their ideal solution for their design requirements.

In this whitepaper, you will learn how to:

1. Choose the proper topology for fast charger designs
2. Identify a suitable power switch for high-efficiency designs
3. Improve wired communication capabilities with proper selection of a USB-C protocol controller