Infineon IPZ40N04S5-8R4: A 40V N-Channel OptiMOS 5 Power MOSFET

In the realm of power electronics, efficiency, thermal performance, and reliability are paramount. The Infineon IPZ40N04S5-8R4 stands out as a premier solution, embodying the advanced OptiMOS™ 5 technology to meet these demanding requirements. This 40V N-Channel power MOSFET is engineered to deliver exceptional performance in a compact, space-saving package, making it an ideal choice for a wide array of modern applications.

A key strength of this MOSFET is its extremely low on-state resistance (RDS(on)) of just 0.8 mΩ (max. at VGS = 10 V). This minimal resistance is a cornerstone of its high efficiency, as it directly translates to reduced conduction losses. When a device conducts current, power is lost as heat across the RDS(on). By minimizing this value, the IPZ40N04S5-8R4 ensures that more power is delivered to the load and less is wasted, leading to cooler operation and higher overall system efficiency.

Furthermore, the OptiMOS 5 platform provides superior switching performance. The device features optimized gate charge (Qg) and low internal capacitances, which allow for very fast switching transitions. This is critical in high-frequency applications like switch-mode power supplies (SMPS) and DC-DC converters, where reducing switching losses is essential for achieving peak efficiency. The combination of low RDS(on) and excellent switching characteristics makes this MOSFET a powerhouse for improving power density.

The PQFN 3.3x3.3 mm package (S3O8) offers significant advantages. Its small footprint is crucial for modern, miniaturized designs, allowing engineers to save valuable PCB space. More importantly, the package is designed for enhanced thermal dissipation. The exposed top and bottom pads efficiently transfer heat away from the silicon die to the PCB, enabling higher power handling capability and improved long-term reliability by keeping operating temperatures lower.

Typical applications for the IPZ40N04S5-8R4 are extensive, including:

High-frequency DC-DC conversion in servers, telecom, and computing systems.

Motor control and drives for robotics, drones, and industrial automation.

Synchronous rectification in switched-mode power supplies (SMPS).

Battery management systems (BMS) and protection circuits.

Load switch systems requiring minimal voltage drop.

ICGOOFind: The Infineon IPZ40N04S5-8R4 leverages state-of-the-art OptiMOS 5 technology to set a new benchmark for efficiency and power density in a 40V class MOSFET. Its industry-leading low RDS(on) and excellent thermal performance in a miniature package make it an indispensable component for designers striving to create more efficient, compact, and reliable power solutions.

Keywords: OptiMOS 5, Low RDS(on), Power Efficiency, Thermal Performance, PQFN Package.