Product Overview: LT3447EDD from Linear Technology

The LT3447EDD is a high-performance, adjustable frequency, monolithic step-down switching regulator from Linear Technology. This compact and efficient power management integrated circuit is designed to deliver continuous output currents up to 600mA to loads with input voltage ranging from 3.3V to 36V, making it an excellent choice for a wide array of portable and industrial applications.

Key Features:

• Wide Input Voltage Range: The LT3447EDD operates with an input voltage from 3.3V to 36V, accommodating a variety of power sources from single-cell lithium-ion batteries to industrial voltage rails.
• Adjustable Switching Frequency: Users can set the switching frequency anywhere from 300kHz to 2.5MHz via an external resistor, allowing for flexibility in balancing efficiency and external component size.
• High Efficiency: The device features a high efficiency of up to 85%, which helps reduce power loss and improve battery life in portable applications.
• Low Shutdown Current: The LT3447EDD boasts a low shutdown current of less than 1µA, which is critical for power conservation in battery-powered devices during standby mode.
• Thermal Protection: Built-in thermal shutdown ensures the device operates within safe temperature limits, protecting both the regulator and the overall system from overheating.

Applications:

The versatility of the LT3447EDD makes it suitable for a broad range of applications, including but not limited to:

• Portable Electronics
• Automotive Power Systems
• Industrial Supplies
• Telecommunications Equipment
• Distributed Power Systems

Package Information:

The LT3447EDD is offered in a 10-pin (3mm x 3mm) DFN package with a thermally enhanced pad for improved heat dissipation. This small footprint package is ideal for space-constrained applications requiring a high level of power efficiency.

Conclusion:

With its wide input voltage range, adjustable switching frequency, and high efficiency, the LT3447EDD from Linear Technology is a robust power solution that meets the needs of diverse electronic systems. Its low shutdown current and thermal protection make it a reliable choice for designers looking to optimize power management in their next project.