Renesas Electronics launches a new USB-C power solution with an innovative three-level topology, which improves performance while reducing system size
2025-08-21
The new solution combines excellent thermal efficiency and power loss, suitable for various applications such as multi port USB-PD chargers and portable power stations
Renesas Electronics (TSE: 6723), a global semiconductor solutions provider, announced today the launch of the RAA489300/RAA489301 high-performance buck controller. This new controller adopts a three-level buck topology structure, designed specifically for battery charging and voltage regulation in USB-C systems. It is suitable for multi port USB-PD chargers, portable power supplies, PC docking stations, robots, drones, and other applications that require high-efficiency DC/DC controllers.
The three-level buck converter topology used in this new IC has excellent efficiency and can significantly reduce the inductance required by the buck converter. Its innovative design can minimize power loss and reduce system size, making it an ideal choice for compact high-performance applications.
Compared with traditional two-level buck converters, the three-level topology structure adds two additional switches and one flying capacitor. Flyover capacitors can reduce voltage stress on switches, allowing designers to use low-voltage FETs with better quality factors, thereby effectively reducing conduction and switching losses. In addition, this topology structure also supports the use of smaller inductors, with peak to peak ripple of about 25% of that of a two-level converter, thereby reducing inductor core and DC resistance losses.
The Renesas USB-PD solution has excellent quality and safety, while also combining high efficiency and power density. As a global supplier of USB-PD solutions, Renesas offers a comprehensive product portfolio covering various applications, including turnkey solutions. With a wide range of development environments and pre certified USB-IF reference designs, we help customers shorten product time to market.
Gaurang Shah, Vice President of the Power Division at Renesas, said: "This three-level buck topology solution is a model of Renesas' outstanding position in the field of battery charging. This innovative technology includes multiple pending breakthrough patent achievements, which can bring significant advantages to our customers compared to competitors' USB-C power solutions. ”
The three-level DC-DC RAA489300/RAA489301 voltage regulator has excellent thermal performance, which can reduce cooling requirements and save costs and space. This innovative approach meets the growing market demand for compact and efficient power management systems.
Key characteristics of RAA489300/RAA489301 voltage regulator
• Supports a wide range of input and output voltages, suitable for battery packs with different voltages and various PD adapters
• Integrated security features; Built in overcharge, overheating, and abnormal voltage protection mechanisms
• Excellent scalability, easily adaptable to different power levels and application requirements
Optimized switch architecture, distributing voltage between power switches to improve efficiency
• Minimize power consumption to help achieve greener and more sustainable designs
Reduce thermal stress, improve system reliability, and extend product lifespan
Successful product portfolio
Renesas offers two successful product combinations, RTK-251-SinkCharger-240W and 240W dual port card, which can minimize the development workload required for customers to integrate USB-C battery charging function into their products. These 'successful product combinations' are based on compatible and seamlessly collaborative products, with a technically validated system architecture that brings optimized low-risk designs to accelerate product launch speed. Renesas has launched over 400 "successful product combinations" based on its product lineup, enabling customers to accelerate the design process and bring products to market faster. For more information, please visit Renesas.com/win.
Supply Information
RAA489300/RAA489301 is now available in a 4mm x 4mm 32 pin TQFN package, and also provides comprehensive design support and tools, including RTK-251-SinkCharger-240W kit and RTKA489300DE0000BU evaluation board. For more information, please visit: https://www.renesas.com/raa489300 .
Advantages of Renesas Power Management Technology
As a globally renowned supplier of power management products, Renesas Electronics has achieved an average annual shipment volume of over 1.5 billion units in recent years. A large number of these products serve the computing industry, while the rest are widely used in industries, the Internet of Things, data centers, and communication infrastructure. Renesas has the widest portfolio of power management devices, offering unparalleled quality and efficiency, as well as exceptional battery life. Meanwhile, as a trusted supplier, Renesas has decades of experience in power management IC design, backed by a dual source production model, advanced process technology in the industry, and a vast system of over 250 ecosystem partners. For more information about Renesas' power management technology, please visit www.renesas.com/power.
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