The AM3406N is a monolithic step-down (buck) switching regulator manufactured by Analog Power. It achieves 3A continuous output current over a wide input supply range with excellent load and line regulation. It is designed for efficient power conversion in a variety of applications.

Applications

• Point-of-Load (POL) regulators
• Distributed power systems
• Battery chargers
• Power adapters
• LCD monitors and TVs

Features

• Wide Input Voltage Range: 4.5V to 18V.
• Adjustable Output Voltage: 0.925V to Vin.
• 3A Continuous Output Current: High current capability for demanding loads.
• High Efficiency: Up to 95% efficiency, minimizing power losses.
• Fixed Frequency Operation: 500kHz switching frequency for stable performance.
• Built-in Over Current Protection (OCP): Protects the device and load from overcurrent conditions.
• Built-in Short Circuit Protection (SCP): Protects the device and load from short circuits.
• Thermal Shutdown: Protects the device from overheating.
• Enable/Disable Function: Allows for easy power management.
• Available in SOP-8 Package: Compact surface mount package.

Benefits

• Efficient Power Conversion: High efficiency reduces power dissipation and improves system thermal performance.
• Stable Output Voltage: Excellent load and line regulation ensures a stable output voltage under varying conditions.
• Robust Protection Features: OCP, SCP, and thermal shutdown protect the device and load from damage.
• Easy to Use: Simple external component selection and layout.
• Compact Size: SOP-8 package saves board space.
• Versatile Applications: Suitable for a wide range of power conversion applications.

Additional Details

The AM3406N utilizes a current-mode control architecture to achieve fast transient response and excellent stability. External components such as inductors and capacitors can be selected to optimize performance for specific applications. The device is RoHS compliant and lead-free. The enable pin allows for remote on/off control of the regulator. Its internal compensation network simplifies the design process.