Linear Technology's LT8471EUFD#PBF Dual Multitopology DC/DC Converter

The LT8471EUFD#PBF is a versatile and efficient dual DC/DC converter produced by Linear Technology, now part of Analog Devices. This advanced component is designed to cater to a wide range of power supply requirements, offering multiple topology options including boost, SEPIC, and inverting configurations. Its flexibility makes it an ideal choice for a variety of applications, from industrial to automotive, and portable devices.

Key Features

    
• Wide Input Voltage Range: The device operates from a 2.6V to 38V input voltage range, making it suitable for applications with varying input supplies, including single-cell Li-Ion to automotive inputs.
    
• Dual Independent Outputs: It can generate two independent output voltages ranging from 1.5V to 38V, which are beneficial for systems requiring multiple supply voltages.
    
• High Efficiency: With an up to 2A switch current capability and the ability to drive a second power switch, the LT8471EUFD#PBF ensures high efficiency and a reduced BOM count.
    
• Adjustable Switching Frequency: Users can set the switching frequency anywhere between 100kHz to 2MHz or synchronize it to an external clock, allowing for flexibility in design and optimization of component sizes.
    
• Low Shutdown Current: The shutdown current is less than 1µA, which enhances the efficiency in low-power states and contributes to energy conservation in battery-powered applications.

Protection Features

    
• Soft-Start Function: This feature limits inrush current during startup, providing protection to the converter and the load.
    
• Internal Over-Temperature Protection: Ensures the device operates within safe temperature ranges, thereby improving reliability and longevity.
    
• Output Overvoltage Protection: Shields the downstream components from potential damage due to overvoltage conditions.

The LT8471EUFD#PBF comes in a 4mm x 5mm QFN-28 package, which is compact and suitable for space-constrained applications. Its robust design and comprehensive feature set make it an exceptional choice for designers looking for a reliable and flexible power conversion solution.

Whether you're developing power supplies for consumer electronics, automotive subsystems, or industrial equipment, the LT8471EUFD#PBF by Linear Technology offers the performance, versatility, and protection features to meet your needs.