Introducing the LT1940EFE Dual DC/DC Converter from Linear Technology

The LT1940EFE is a versatile and efficient dual DC/DC converter designed by Linear Technology, now part of Analog Devices, to meet the rigorous power supply requirements of modern electronic devices. This component is a high-performance solution that provides two independent output voltages from a single input, making it an ideal choice for applications that require multiple regulated voltages.

Key Features of the LT1940EFE

• Wide Input Voltage Range: The device can operate with an input voltage range from 2.6V to 16V, making it suitable for a variety of power sources, including single-cell lithium-ion batteries, multi-cell alkaline batteries, or regulated 5V and 12V power rails.
• Two Independent Outputs: It features two internal switch regulators with independent outputs. The first channel is capable of delivering up to 1.2A of output current, while the second channel can provide up to 800mA.
• High Efficiency: The LT1940EFE is designed for high efficiency, which is critical for battery-powered applications. Its high switching frequency of up to 1.2MHz allows the use of small, low-cost inductors and capacitors, resulting in compact and cost-effective power supply designs.
• Adjustable Switching Frequency: Designers have the flexibility to optimize the switching frequency as per their specific application requirements, which can range from 300kHz to 1.2MHz.
• Thermal Protection: The device includes thermal shutdown protection to safeguard against overheating, ensuring reliable operation under a wide range of conditions.

Applications

The LT1940EFE is suitable for a broad array of applications, especially where efficient space utilization and power management are paramount. These include:

• Portable and handheld devices
• Automotive power supplies
• Industrial power systems
• Communication equipment
• Distributed power systems

Robust Packaging

The LT1940EFE comes in a 16-lead TSSOP package, which provides a compact footprint while offering excellent thermal performance. This packaging makes it suitable for space-constrained applications while still delivering the power required for demanding systems.

With its dual outputs, wide input voltage range, and high efficiency, the LT1940EFE from Linear Technology is a powerful and flexible component that can significantly enhance the performance and reliability of your electronic designs.