CSD17318Q2

The CSD17318Q2 is a high-performance, low-voltage N-channel MOSFET manufactured by Texas Instruments, designed for efficient power conversion and switching applications. It features a very low on-resistance (RDS(on) = 4.5 mΩ at VGS = 10 V), enabling minimal conduction losses and improved system efficiency, especially in high-current environments. The device supports a maximum continuous drain current of 96 A at 25°C junction temperature, making it suitable for demanding power management tasks. This MOSFET is optimized for use in synchronous rectification circuits, such as those found in DC-DC converters, battery-powered systems, and motor drives. Its advanced trench technology ensures fast switching speeds with low gate charge (QG = 140 nC typical), reducing switching losses and allowing higher operating frequencies without compromising efficiency. Additionally, the low input capacitance (Ciss = 1200 pF) enhances compatibility with high-frequency gate drivers, improving overall circuit performance. The CSD17318Q2 is packaged in a thermally enhanced TO-247-3L package, which provides excellent thermal dissipation—critical for maintaining reliability under sustained load conditions. This packaging also simplifies PCB layout design, offering robust mechanical stability and ease of integration into existing designs. The device operates within a wide supply voltage range of up to 20 V, ensuring flexibility across various power stages. Key safety and reliability features include built-in protection against avalanche breakdown and a rugged structure that withstands high surge currents. These characteristics make the CSD17318Q2 ideal for use in industrial power supplies, consumer electronics, automotive systems, and renewable energy inverters where durability and efficiency are paramount. Its low RDS(on) and high current capability reduce heat generation, enabling smaller heatsinks or passive cooling solutions, thus contributing to compact and cost-effective system designs. Engineered for high-frequency operation and optimized for modern power electronics, this MOSFET supports both hard-switching and soft-switching topologies, including buck, boost, and flyback converters. With its combination of low resistance, high current handling, and thermal efficiency, the CSD17318Q2 delivers consistent performance across diverse environmental conditions, from ambient to elevated temperatures.