Infineon IRFH7440TRPBF 40V Dual N-Channel MOSFET in PQFN 3x3mm: Key Features and Applications

The Infineon IRFH7440TRPBF is a highly integrated dual N-channel MOSFET housed in an advanced PQFN 3x3mm package, designed to meet the demanding requirements of modern power management applications. Combining high efficiency, robust performance, and a compact form factor, this component is ideal for space-constrained designs where thermal management and power density are critical.

Key Features

This MOSFET stands out due to its low on-resistance (RDS(on)) of just 1.8mΩ per channel at 10V, significantly reducing conduction losses and improving overall system efficiency. The device operates at 40V drain-to-source voltage (VDS), making it suitable for a variety of intermediate voltage applications. Its dual-channel configuration allows for simplified circuit design by integrating two MOSFETs in a single package, saving board space and reducing component count. The PQFN (Power Quad Flat No-Lead) package offers superior thermal performance, with an exposed pad that enhances heat dissipation, enabling higher power handling in a minimal footprint. Additionally, it features low gate charge (Qg) and fast switching capabilities, which are essential for high-frequency operations, reducing switching losses and electromagnetic interference (EMI).

Applications

The IRFH7440TRPBF is widely used in synchronous rectification circuits in switch-mode power supplies (SMPS), where its low RDS(on) and dual-channel design improve efficiency and power density. It is also ideal for DC-DC converters in computing, telecommunications, and industrial systems, providing efficient power conversion and voltage regulation. In motor drive and control applications, such as robotics and automotive systems, this MOSFET enables compact and reliable half-bridge and full-bridge configurations. Furthermore, it is employed in battery management systems (BMS) and load switches for portable devices, where its small size and high performance help extend battery life and reduce heat generation.

ICGOOODFIND

The Infineon IRFH7440TRPBF exemplifies innovation in power semiconductor technology, offering a blend of high efficiency, thermal performance, and integration that meets the needs of next-generation electronic systems.

Keywords: Dual N-Channel MOSFET, Low RDS(on), PQFN 3x3mm Package, Synchronous Rectification, DC-DC Converters.