The AO4817 is an N-Channel enhancement mode MOSFET from Alpha & Omega Semiconductor. It is designed for high-efficiency power management applications requiring a combination of low on-resistance (RDS(ON)) and fast switching speeds. This MOSFET is commonly used in synchronous rectification, DC-DC converters, and power management circuits in portable devices.

Applications

• Synchronous Rectification: Improves efficiency in power supplies by replacing diodes with MOSFETs.
• DC-DC Converters: Used for voltage regulation and power conversion in various electronic devices.
• Power Management in Portable Devices: Optimizes power consumption in battery-powered devices like smartphones and tablets.
• Load Switching: Efficiently controls power to various loads in a system.
• Battery Management Systems: Used in battery charging and discharging control.

Features

• Low RDS(ON): Minimizes conduction losses for improved efficiency.
• Low Gate Charge: Enables fast switching speeds.
• 100% UIS Tested: Ensures robustness against inductive loads.
• RoHS Compliant: Environmentally friendly, adhering to RoHS standards.
• SO-8 Package: Compact surface-mount package for space-saving designs.

Benefits

• Increased Efficiency: Lower on-resistance reduces power dissipation, improving overall system efficiency.
• Faster Switching: Low gate charge allows for higher switching frequencies, leading to smaller and more efficient power converters.
• Improved Reliability: 100% UIS testing ensures the device can withstand voltage spikes associated with inductive loads.
• Environmentally Responsible: RoHS compliance demonstrates commitment to environmental standards.
• Smaller Product Size: Compact SO-8 package enables denser board layouts and smaller product sizes.

Technical Specifications

The AO4817 typically features a drain-source voltage (VDS) of 30V and a continuous drain current (ID) of 8A. The maximum RDS(ON) is typically 12 mΩ at VGS = 10V. The gate threshold voltage typically falls between 1V and 3V. It is available in a standard SO-8 package and is designed for surface mount assembly.