NXP BUK7275-100A: A Deep Dive into the 100V, 7mΩ OptiMOS™ 5 Power MOSFET

In the relentless pursuit of higher efficiency and power density in electronic systems, the power MOSFET stands as a critical enabler. Among the latest advancements, the NXP BUK7275-100A emerges as a formidable component, pushing the boundaries of performance for 100V applications. This deep dive explores the technology and capabilities that make this OptiMOS™ 5 device a standout choice for designers.

At its core, the BUK7275-100A is engineered to minimize losses. Its headline feature is an ultra-low typical on-state resistance (RDS(on)) of just 7.2 mΩ at 10 V. This exceptionally low resistance is the key to maximizing efficiency, as it directly reduces conduction losses. When a MOSFET is in its on-state, the power it dissipates is proportional to RDS(on). By driving this value to such a low figure, NXP ensures that more power is delivered to the load and less is wasted as heat, which is paramount for battery-operated devices and high-current power supplies.

This performance is made possible by NXP's advanced OptiMOS™ 5 technology. This latest generation of power MOSFETs utilizes an optimized trench process and novel packaging techniques to achieve a superior figure of merit (FOM) – the product of RDS(on) and gate charge (Qg). A lower FOM signifies a switch that is both efficient in conduction and swift in switching. The BUK7275-100A excels here, boasting a low gate charge that allows for reduced switching losses and enables higher frequency operation. This allows designers to shrink the size of magnetic components like inductors and transformers, directly contributing to increased power density.

The 100V drain-source voltage rating makes this MOSFET exceptionally versatile. It is ideally suited for a wide array of demanding applications, including:

Primary side switching in 48V input Telecom and Server power supplies (PSU).

Motor control and Drives for industrial automation and robotics.

Battery Management Systems (BMS) and protection circuits.

High-current DC-DC converters and inverters.

Housed in a TO-LL package with an exposed top, the device offers an excellent thermal performance. The low thermal resistance from junction to case (RthJC) ensures that the heat generated by internal losses can be effectively transferred to an external heatsink, maintaining a lower operating temperature and enhancing long-term reliability.

ICGOOFIND: The NXP BUK7275-100A is a benchmark in 100V power switching, masterfully combining an ultra-low 7mΩ RDS(on) with the fast switching characteristics of OptiMOS™ 5 technology. It is a premier solution for engineers aiming to push the limits of efficiency, power density, and thermal performance in modern high-performance applications.

Keywords:

OptiMOS™ 5

Ultra-low RDS(on)

100V Power MOSFET

High Efficiency

Power Density