The LT3973EDD#PBF is a high-performance step-down switching regulator from Linear Technology, designed for a wide range of power supply applications. This compact and efficient module is ideal for portable devices, industrial equipment, automotive systems, and many other applications requiring efficient voltage regulation.

Key Features

• Adjustable Switching Frequency: The device allows for an adjustable switching frequency from 200kHz to 2.4MHz, enabling designers to optimize for efficiency or component size.
• Wide Input Voltage Range: With an input voltage range of 4.3V to 58V, the LT3973EDD#PBF is versatile and can handle a variety of input sources, including unregulated and fluctuating inputs.
• Robust Output Voltage: The output voltage is adjustable from 0.79V to the input voltage, ensuring a wide range of output voltage options for different needs.
• High Efficiency: The device features a high efficiency of up to 93%, reducing power loss and heat generation, which is critical for battery-powered applications.
• Integrated Boost Diode: The inclusion of an integrated boost diode simplifies the design and reduces external component count, saving space and cost.
• Thermal Protection: The LT3973EDD#PBF includes thermal shutdown protection, safeguarding the device from damage due to overheating.

Applications

• Portable Electronic Devices
• Automotive and Industrial Systems
• Telecommunications Equipment
• Distributed Power Supplies
• Battery-Powered Applications

Package and Reliability

The LT3973EDD#PBF is packaged in a compact 10-lead DFN with a thermal pad for enhanced thermal performance. Its robust design ensures reliable operation even in harsh conditions, making it a preferred choice for applications that demand high reliability and durability.

Conclusion

With its high efficiency, wide input voltage range, and adjustable output, the LT3973EDD#PBF from Linear Technology stands out as a versatile and reliable solution for a multitude of power regulation requirements. Its integrated features and thermal protection make it an excellent choice for designers looking to optimize their power systems for performance and space.