The MP5414ADV-LF-Z is a monolithic, step-down switch mode converter with a built-in internal power MOSFET. It achieves 3A continuous output current with excellent load and line regulation over a wide input supply range. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. The device is available in a small 3x3mm QFN package and requires minimal external components.

Applications

• Distributed Power Systems
• Networking Systems
• Industrial Power Systems
• Battery Chargers

Features

• Wide 4.5V to 24V Operating Input Range
• 3A Continuous Output Current
• Built-in Power MOSFET
• Excellent Load and Line Regulation
• Up to 93% Efficiency
• Adjustable Output Voltage
• Current Mode Operation
• Cycle-by-Cycle Over Current Protection
• Thermal Shutdown
• Available in a QFN3x3 Package

Benefits

• High Efficiency: The device operates with high efficiency, reducing power loss and extending battery life in portable applications.
• Robust Protection: Includes over-current and thermal shutdown protection mechanisms for enhanced system reliability.
• Small Footprint: Compact QFN package minimizes board space requirements, enabling smaller end product designs.
• Stable Output: Provides excellent load and line regulation for a stable output voltage, even with varying input or output conditions.
• Easy to Use: Simple design and few external components simplify the design process.

Additional Details

The MP5414ADV-LF-Z uses a constant on-time control architecture to provide a fast transient response. The switching frequency is internally set, typically around 500kHz. The output voltage is adjustable using an external resistor divider. The internal current limit protects the converter from over-current conditions. The thermal shutdown feature prevents the device from overheating under excessive power dissipation. Refer to the MPS Industries datasheet for detailed specifications, application circuit examples, and PCB layout recommendations. Careful PCB layout is crucial for minimizing noise and ensuring optimal performance. Use short, wide traces for the high-current paths. Place the input and output capacitors close to the device. The “LF” in the part number indicates that the device is lead-free and RoHS compliant. This device is well suited for powering digital loads, microcontrollers, and other sensitive electronic components in a variety of applications.