The SPD28N03 is a Power MOSFET from Infineon Technologies, designed for high-efficiency switching applications. This N-channel MOSFET is part of the OptiMOS™ family, known for its low on-state resistance and fast switching speeds.

Applications:

• DC-DC converters
• Synchronous rectification
• Motor control
• Power management in computing and telecommunications
• Battery management systems

Features:

• Optimized for high-frequency switching.
• Extremely low on-state resistance (RDS(on)), minimizing conduction losses.
• Logic level compatibility, allowing direct drive from microcontrollers.
• Avalanche rated.
• Robust body diode for efficient synchronous rectification.

Benefits:

• Increased system efficiency, leading to reduced power consumption and heat generation.
• Simplified design due to logic level compatibility.
• Improved system reliability through avalanche capability.
• Reduced component count due to efficient synchronous rectification.
• Enhanced thermal performance due to low RDS(on).

Technical Specifications:

The SPD28N03 typically features a drain-source voltage (VDS) of 30V and a continuous drain current (ID) of up to 28A (depending on package and cooling). Its on-state resistance (RDS(on)) is typically around 11 mΩ at a gate-source voltage of 10V. The gate charge (Qg) is low, contributing to fast switching speeds. It is available in various packages, including DPAK and TO-252. The operating junction temperature range is -55°C to +175°C.