Introducing the STU90N4F3 Power MOSFET by STMicroelectronics

The STU90N4F3 is a high-performance Power MOSFET brought to you by STMicroelectronics, a global semiconductor leader renowned for its cutting-edge technology. This particular MOSFET is part of the STripFET™ F3 series, which is designed to deliver high efficiency and power density with low on-resistance and minimal gate charge. The STU90N4F3 is an ideal choice for a wide range of applications, including switch-mode power supplies, DC-DC converters, motor control circuits, and general-purpose switching applications.

Key Features of STU90N4F3

• Low On-Resistance: The STU90N4F3 boasts an ultra-low on-resistance (R<sub>DS(on)), which significantly reduces conduction losses and improves overall efficiency.
• High Current Capability: With a continuous drain current (I<sub>D) of up to 80 A, this MOSFET can handle high current loads, making it suitable for demanding applications.
• 100% Avalanche Tested: Each unit is rigorously tested for avalanche performance, ensuring reliability and robustness in harsh conditions.
• Low Gate Charge: The device has a low gate charge (Q<sub>g), which reduces switching losses and enables fast switching speeds.
• Low Threshold Voltage: The low threshold voltage (V<sub>GS(th)) allows for the MOSFET to be easily driven at lower gate voltages, enhancing its compatibility with a variety of drive circuits.

Applications

The versatility of the STU90N4F3 makes it suitable for a broad range of applications. It is particularly well-suited for:

• High-efficiency DC/DC converters
• Power management in computing and telecom systems
• Synchronous rectification for switch-mode power supplies
• Motor drives and controls in industrial and automotive systems
• Load switches and battery management in portable devices

The STU90N4F3 is encapsulated in a surface-mount DPAK package, which not only saves space on the PCB but also provides excellent thermal performance. Its design is optimized to minimize on-state resistance while maintaining superior switching performance and reliability, which are critical in high-efficiency power conversion.

STMicroelectronics' commitment to innovation is evident in the STU90N4F3 Power MOSFET, making it a smart choice for designers looking to enhance the performance and efficiency of their power management systems.