ROHM Unveils Ultra-compact MOSFET with Low ON-resistance for Fast Charging Needs

ROHM Unveils the AW2K21: A Game-Changer in Fast Charging Technology

ROHM Co., Ltd. has recently announced the launch of their latest innovation, the AW2K21—a 30V N-channel MOSFET designed to meet the high demands for fast-charging applications in compact devices. This ultra-compact MOSFET comes in a common-source configuration and boasts an impressive ON-resistance of just 2.0 milliohms (typical), setting a new industry standard.

Addressing Industry Challenges

In a world where fast charging is becoming increasingly essential, particularly in smartphones, tablets, wearable devices, and other compact electronics, the AW2K21 is a significant advancement. Traditional solutions often require two large MOSFETs to meet strict specifications, such as a current rating of 20A and a breakdown voltage of 28-30V, with ON-resistance no greater than 5 milliohms. This has historically led to increased board space usage and added design complexity. However, ROHM's latest offering integrates two MOSFETs into a single compact package, facilitating bidirectional protection while reducing the overall footprint and power loss.

Innovative Design Features

The unique structure of the AW2K21 enhances cell density, positioning the drain terminal on the top surface instead of employing the conventional vertical trench MOSFETs. This innovation allows for an increased chip-to-package area ratio, resulting in a minimized ON-resistance per unit area. Compared to standard 3.3mm x 3.3mm MOSFETs, the AW2K21 offers a remarkable reduction in footprint and ON-resistance—approximately 81% and 33% lower, respectively. Furthermore, it surpasses similarly sized GaN HEMTs with up to 50% lower ON-resistance, significantly improving efficiency in power supply and charging circuits.

Versatility in Applications

The AW2K21 is not only perfect for power supply systems and charging circuits; it also excels as a unidirectional protection MOSFET for load switch applications. From smartphones and laptops to VR headsets and portable gaming consoles, the versatility of this MOSFET makes it ideal for a wide range of electronic devices. To keep pace with the relentless push toward miniaturization, ROHM is already developing a more compact 1.2mm x 1.2mm model, expected to enhance this trend further.

Commitment to Sustainability

ROHM continues to prioritize energy efficiency and miniaturization in the electronics industry. By pushing the boundaries of semiconductor technology and offering high-performance solutions, ROHM is solving real-world challenges and contributing to a more sustainable future.

Availability

The AW2K21 is set to create a stir in the market, with sales launching in April 2025 at a sample price of $3.5 per unit (excluding tax). Available through major distributors like DigiKey and Mouser, this cutting-edge product will soon be accessible for businesses and consumers alike, paving the way for superior performance in compact electronic devices.

For more information about the AW2K21 MOSFET, visit ROHM's official page.