The Linear Technology LT3505EDD is a high-performance, adjustable frequency (2MHz) step-down switching regulator that is designed to meet the needs of a wide range of applications. Packaged in a compact 10-lead DFN with a 3mm x 3mm footprint, this regulator is ideal for space-constrained applications without compromising on power efficiency and reliability.

Key Features

• Wide Input Voltage Range: The LT3505EDD operates from a 3.6V to 36V input voltage range, making it suitable for applications powered from a variety of sources including automotive batteries, industrial supplies, and standard 12V and 24V rails.
• High Efficiency: With its high 2MHz switching frequency, which allows the use of small, low-cost capacitors and inductors, the LT3505EDD achieves efficiencies as high as 85%.
• Adjustable Switching Frequency: The switching frequency can be programmed anywhere from 1.1MHz to 2.4MHz, enabling designers to optimize the regulator for efficiency or component size.
• Robust Thermal Performance: The LT3505EDD's thermally enhanced DFN package ensures efficient heat dissipation, contributing to reliable operation even in high-temperature environments.
• Integrated Features: This regulator includes a 0.8V feedback reference voltage, an internal soft-start to limit inrush current during startup, and a shutdown feature that reduces quiescent current to less than 1μA.

Applications

The LT3505EDD is versatile enough to be used in a variety of applications, including:

• Automotive and Industrial Power Systems
• Distributed Power Supplies
• Portable Electronic Devices
• Telecommunications Infrastructure

Reliability

Linear Technology's commitment to high-quality manufacturing ensures that the LT3505EDD provides consistent and reliable performance. The device is rated for operation from -40°C to +125°C, accommodating a broad range of temperature conditions.

With its combination of flexibility, efficiency, and compact size, the LT3505EDD is an excellent choice for designers looking to optimize their power supply solutions across various applications.