Design compact, high‑efficiency USB‑C battery chargers with scalable power architectures, USB‑C PD compliance, and proven reference designs—accelerating time to market across end devices.
USB‑C battery chargers have become a foundational element of modern power delivery, enabling fast, efficient, and universal charging across a broad range of consumer and portable applications, including smartphones, laptops, tablets, power tools, and emerging high‑power devices. With the widespread adoption of USB Type‑C and the latest USB Power Delivery (PD) standards, charging systems now support bidirectional power flow, dynamic voltage and current negotiation, and significantly higher power levels. The introduction of USB‑C PD 3.0/3.1 with Extended Power Range (EPR) expands output capability up to 240 W and programmable voltages up to 48 V, accelerating charge times while extending USB‑C into new application spaces. At the same time, increasing regulatory focus on efficiency and standby power consumption drives the need for advanced power conversion architectures and higher system integration.
onsemi’s USB‑C Battery Charger Solutions address these requirements with scalable, high‑efficiency architectures covering AC‑input and DC‑input designs from 65 W to 240 W. These solutions integrate key power stages—including power factor correction (PFC), DC‑DC conversion using flyback or LLC topologies, synchronous rectification, and precise PD control with PPS support—to deliver compact, thermally efficient designs. Leveraging wide‑bandgap (WBG) technologies such as GaN and integrated driver GaN (iGaN), along with optimized silicon and SiC devices, enabling higher switching frequencies, increased power density, and improved overall efficiency. Supported by proven reference designs, evaluation boards, and a comprehensive portfolio of controllers and power devices, onsemi provides a complete and production‑ready foundation for next‑generation USB‑C PD chargers.
Learn how USB Power Delivery (USB PD) up to 240W and 48V is revolutionizing power supply and battery charger applications.
Watch Video
Explore power switch selection and design in the USB‑C power path, addressing USB Power Delivery (PD) control, protection mechanisms, efficiency, and system reliability.
White Paper View Products
The 240 W USB PD3.1 reference designs provide a complete solution for high-power battery chargers, including detailed schematics, PCB layouts and simulation data to help engineers
Learn More Design Notes
Our high-performance SiC cascode JFETs deliver best-in-class switching speed, lower switching losses and higher efficiency for power supply units (PSUs).
View Products White Paper
A product portfolio of USB Type-C devices that include a variety of low power USB Type-C controllers, including those with Power Delivery (PD) protocol.
Achieve your design goals with onsemi's superior LVMV MOSFET technologies, delivering exceptional quality, robustness, and scalability to meet your mission-critical system needs.
Design Resources
Tools and resources for your evaluation process.
Utilize our PRT+ tool to identify the ideal product for you.
Explore tailored components and insights for your application.
Buy and validate the performance of chosen components.
USB‑C battery chargers are used in smartphones, tablets, laptops, power tools, e‑bikes, IoT devices, power banks, and emerging industrial or energy storage products. With Extended Power Range support up to 240 W, USB‑C chargers now address both consumer electronics and higher‑power applications requiring compact, efficient, and standardized charging interfaces.
USB‑C Power Delivery enables dynamic negotiation between the charger and device to optimize voltage and current. Features such as Programmable Power Supply allow fine‑grained control of output power, reducing conversion losses, improving thermal behavior, and enabling faster and more efficient charging compared to fixed‑voltage charging methods.
USB‑C uses a standardized connector and protocol that supports power, data, and alternate modes in a single interface. Its reversible design and unified Power Delivery protocol reduce the need for multiple chargers and cables, improve interoperability across vendors, and simplify system design for both device manufacturers and end users.
Gallium nitride power devices enable higher switching frequencies, lower losses, and higher power density than traditional silicon devices. In USB‑C chargers, this results in smaller magnetics, reduced heat generation, higher efficiency, and more compact form factors, which are critical for high‑power fast chargers up to 240 W.
USB‑C charger development is supported by system block diagrams, reference designs, evaluation boards, simulation models, and application notes. These resources help engineers accelerate architecture selection, validate performance, ensure standards compliance, and reduce development risk for both AC‑input and DC‑input charger designs.
Worth Your Time
Discover curated articles brimming with innovative insights and industry trends.
Related Videos
Let's keep going – watch these videos for deeper dives and fresh perspectives.
Support and Community
If you're interested to learn about any onsemi technology, search for related articles in Help library.
