Infineon IPB081N06L3G OptiMOS 5 Power MOSFET: Key Features and Applications
The relentless pursuit of higher efficiency, power density, and reliability in modern electronics drives the continuous innovation in power semiconductor technology. At the forefront of this evolution is Infineon's OptiMOS™ 5 family, with the IPB081N06L3G standing out as a prime example of advanced power MOSFET engineering. This device is engineered to set new benchmarks in performance for a wide array of demanding applications.
Key Features
The IPB081N06L3G is an N-channel MOSFET built on Infineon’s state-of-the-art superjunction technology, offering an optimal balance of key electrical characteristics. Its standout features are centered on minimizing losses and enhancing switching performance.
Exceptional Low On-Resistance (R DS(on)): This MOSFET boasts an ultra-low on-resistance of just 0.81 mΩ at a gate-source voltage of 10 V. This critical parameter directly translates to reduced conduction losses, allowing for higher efficiency operation and lower heat generation during current flow.
Superior Switching Performance: The OptiMOS™ 5 technology ensures outstanding figure-of-merit (FOM), characterized by low gate charge (Q G) and low output charge (Q oss). This enables faster switching speeds, which is crucial for high-frequency operation. Faster switching reduces switching losses, a significant contributor to total power loss in converters.
High Power Density: The combination of low R DS(on) and excellent switching characteristics allows designers to create more compact power solutions. Systems can either be made smaller for the same power level or handle more power within the same form factor.
Enhanced Robustness and Reliability: The device is housed in a TO-Leadless (TOLL) package, which offers an excellent thermal connection to the PCB. This package minimizes parasitic inductance, further supporting high-speed switching, and provides a low thermal resistance path for efficient heat dissipation, thereby improving overall system reliability.

AEC-Q101 Qualified: This qualification makes the IPB081N06L3G suitable for use in automotive environments, ensuring it meets the stringent quality and reliability standards required for vehicle systems.
Primary Applications
The blend of high efficiency, robustness, and power density makes the IPB081N06L3G an ideal choice for a diverse set of high-performance applications.
Automotive Systems: It is extensively used in 48V mild-hybrid vehicles (MHEV) for DC-DC conversion, battery management systems (BMS), and motor drive controls. Its efficiency is key to extending electric driving range and reducing emissions.
Server & Telecom Power Supplies: In data centers and telecommunications infrastructure, this MOSFET is perfect for high-efficiency synchronous rectification (SR) and primary-side switching in switch-mode power supplies (SMPS), including high-current point-of-load (POL) converters.
Industrial Power Tools: The need for high power in a compact, battery-operated package makes this component ideal for brushless DC (BLDC) motor drives in professional drills, saws, and other cordless tools.
Solar Inverters and Energy Storage: Its high efficiency contributes to minimizing energy losses in maximum power point tracking (MPPT) algorithms and inverter stages within solar power conversion systems.
The Infineon IPB081N06L3G OptiMOS™ 5 MOSFET is a superior component that delivers a winning combination of ultra-low conduction loss, fast switching capability, and high thermal performance. It empowers engineers to push the boundaries of efficiency and power density in next-generation automotive, industrial, and computing applications, solidifying its position as a critical enabler of modern power electronics.
Keywords: OptiMOS 5, Low RDS(on), High Power Density, Automotive MOSFET, Synchronous Rectification
