The MP1471 from MPS Industries, Inc. is a high-frequency, synchronous rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very compact solution to achieve 3A continuous output current with excellent load and line regulation over a wide input supply range.

Applications:

• Distributed Power Systems
• Battery Chargers
• Pre-Regulators for Linear Regulators
• Portable Devices

Features:

• Wide 4.5V to 24V Operating Input Range
• 3A Continuous Output Current
• Integrated 110mΩ High-Side and 40mΩ Low-Side MOSFETs
• High-Efficiency Synchronous Mode Operation
• Adjustable Output Voltage from 0.8V to 0.9*VIN
• Up to 93% Efficiency
• Fixed 500kHz Switching Frequency
• Hiccup Over-Current Protection
• Thermal Shutdown Protection
• Available in an 8-Pin SOIC Package

Benefits:

• High Efficiency: Synchronous rectification leads to minimal power loss, increasing overall efficiency and reducing heat generation.
• Compact Solution: Integration of power MOSFETs simplifies the design process and reduces the required board space.
• Wide Input Voltage Range: Accommodates a variety of power sources, making it suitable for diverse applications.
• Robust Protection: Over-current and thermal shutdown protection mechanisms enhance reliability and prevent damage to the device.
• Adjustable Output Voltage: Allows for flexible voltage regulation to meet specific application requirements.

Additional Details:

The MP1471 operates at a fixed switching frequency of 500kHz, allowing for the use of smaller external components. The built-in over-current protection is a hiccup mode, which reduces power dissipation during short-circuit conditions. The device is available in a compact 8-Pin SOIC package, making it suitable for space-constrained applications. The MP1471 is designed to operate over a wide temperature range, ensuring reliable performance in harsh environments.