The IRLML2803 is a logic-level, N-channel MOSFET from International Rectifier (now Infineon Technologies). It is designed for low voltage, low on-resistance switching applications. Its small footprint and logic-level gate drive make it ideal for portable devices and battery-powered applications.

Applications

• Load switching
• DC-DC converters
• Battery management systems
• Portable devices
• Logic-level controlled circuits
• Power management in microcontrollers

Features

• Logic-level gate drive
• Low on-resistance (RDS(on))
• Small SOT-23 package
• Low gate charge (Qg)
• Lead-Free
• RoHS compliant

Benefits

• Simplified gate drive circuitry, allowing direct interface with microcontrollers and other logic devices
• Reduced power losses and improved system efficiency due to low on-resistance
• Compact design, saving valuable board space
• Fast switching speed, suitable for high-frequency applications
• Environmentally friendly due to lead-free and RoHS compliance

Additional Details

The IRLML2803 has a drain-source voltage (Vds) rating of 30V and a continuous drain current (Id) rating of up to 4.2A. The on-resistance (RDS(on)) is typically around 0.05 Ohms at Vgs=4.5V. The gate threshold voltage (Vgs(th)) is between 1V and 2V, ensuring compatibility with logic-level signals. Its fast switching speed minimizes switching losses and allows for higher frequency operation. The small SOT-23 package makes it easy to integrate into densely populated circuit boards.

Key Specifications:

• Vds: 30V
• Id: 4.2A
• RDS(on): 0.05 Ohms (at Vgs=4.5V)
• Vgs(th): 1V - 2V
• Package: SOT-23