Texas Instruments Introduces NexFET? N-Channel Power MOSFETs Enable Industry's Lowest Resistance

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Texas Instruments (TI) has recently launched 11 new N-channel power MOSFETs in its NexFET™ product line, marking a significant advancement in power efficiency and performance. Among these, the CSD16570Q5B and CSD17570Q5B stand out as the industry’s lowest on-resistance devices available in QFN packages, ideal for hot-plugging and ORing applications at 25V and 30V respectively. Additionally, TI introduced the 12V FemtoFET™ CSD13383F4, designed for low-voltage battery-powered systems, offering an impressive 84% lower resistance than competing solutions in a compact 0.6 mm x 1 mm package.

The CSD16570Q5B and CSD17570Q5B NexFET MOSFETs are engineered to deliver high power conversion efficiency at higher current levels, making them perfect for use in computer servers and telecom infrastructure. For instance, the 25V CSD16570Q5B features a maximum on-resistance of just 0.59 mΩ, while the 30V CSD17570Q5B achieves a maximum on-resistance of 0.69 mΩ. To gain deeper insights, you can download and review a 12V, 60A hot-swap reference design using the CSD17570Q5B NexFET.

TI's new CSD17573Q5B and CSD17577Q5A are compatible with the LM27403 DC/DC controller, enabling a full synchronous buck converter solution. These NexFET power MOSFETs also pair well with TI’s hot-swap controllers like the TPS24720. For more information on safe and stable hot-swap designs, refer to the article "Stable and Reliable Hot-Swap Design," which explains how to effectively use transistors as transmission components and ensure reliable operation in various applications.

Below is a list of the latest NexFET™ N-channel power MOSFETs featuring the industry’s lowest on-resistance:

New NexFET Products and Key Features

Availability, Packaging, and Pricing

Currently, the FemtoFET CSD13383F4, along with the CSD17670Q5B and CSD17570Q5B, are available in volume through TI and its authorized distributors. These new devices are expected to become essential components in next-generation power management systems, offering superior performance and reliability for a wide range of industrial and consumer applications.