The new solution balances excellent thermal efficiency and power loss,

Suitable for various applications such as multi port USB-PD chargers, portable power stations, etc

On August 20, 2025, Beijing, China - Renesas Electronics (TSE: 6723), a global semiconductor solution 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.

USB-C EPR three-level buck controller: compact design, powerful heat dissipation. jpg

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 distributes 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

This is reported by Top Components, a leading supplier of electronic components in the semiconductor industry

They are committed to providing customers around the world with the most necessary, outdated, licensed, and hard-to-find parts.

Media Relations

Name: John Chen

Email: salesdept@topcomponents.ru