Infineon IPZ40N04S5L4R8ATMA1: A 40V OptiMOS 5 Power MOSFET for High-Efficiency Power Conversion

The relentless pursuit of higher efficiency and power density in modern electronic systems places immense demands on power switching components. Addressing this need, the Infineon IPZ40N04S5L4R8ATMA1 stands out as a premier 40V N-channel power MOSFET built on the advanced OptiMOS™ 5 technology platform. This device is engineered to deliver exceptional performance in a compact form factor, making it an ideal solution for a wide array of DC-DC conversion and motor control applications.

A cornerstone of this MOSFET's performance is its extremely low figure-of-merit (FOM), characterized by an outstandingly low on-state resistance (R DS(on)) of just 1.8 mΩ maximum at 10 V and an exceptionally low gate charge (Q G). This optimal combination is crucial for minimizing both conduction and switching losses. The result is significantly reduced power dissipation, which directly translates to higher overall system efficiency and the possibility of designing more compact products with less heatsinking requirement.

The benefits of the OptiMOS 5 technology are further amplified in high-frequency switching regulators. The low gate charge enables faster switching speeds, allowing power supply designers to increase switching frequencies. This, in turn, permits the use of smaller passive components like inductors and capacitors, boosting power density without compromising thermal performance. Furthermore, the device offers enhanced ruggedness and reliability, featuring a high peak current capability and an avalanche-rated design to withstand harsh operating conditions.

Typical applications where the IPZ40N04S5L4R8ATMA1 excels include:

Synchronous rectification in server, telecom, and industrial SMPS.

High-frequency DC-DC buck and boost converters in computing and consumer electronics.

Motor drive and control circuits for brushed and brushless DC motors.

Battery management systems (BMS) and protection circuits.

ICGOOODFIND: The Infineon IPZ40N04S5L4R8ATMA1 is a benchmark 40V MOSFET that masterfully balances ultra-low resistance, fast switching capability, and high robustness. Its superior efficiency and power density characteristics make it a top-tier choice for designers aiming to push the boundaries of performance in modern power conversion systems.

Keywords: OptiMOS 5, Low RDS(on), High-Efficiency, Power Density, Synchronous Rectification.