Analog Devices Inc. LTC3119IFE Overview

The LTC3119IFE is a versatile, high-efficiency, synchronous buck-boost DC/DC converter from Analog Devices Inc., designed to manage a wide range of power supply requirements with its adjustable output voltage. This robust component is suitable for applications that require a stable voltage supply despite varying input voltages, such as portable devices, automotive power systems, and industrial equipment.

Key Features

• Buck-Boost Operation: The LTC3119IFE can seamlessly transition between buck (step-down) and boost (step-up) modes, ensuring a consistent output voltage even when the input voltage crosses over the output voltage set point.
• Wide Input Voltage Range: With an input voltage range of 2.5V to 18V, this converter is flexible enough to accommodate a broad spectrum of power sources, from single-cell batteries to higher voltage supplies.
• Adjustable Output Voltage: The output voltage can be set anywhere from 0.8V to 18V, making it highly adaptable for various circuit requirements.
• High Efficiency: The LTC3119IFE can deliver up to 5A of continuous output current with efficiencies as high as 95%, thanks to its 4-switch synchronous rectification design.
• Programmable Switching Frequency: The switching frequency can be programmed between 400kHz and 2MHz or synchronized to an external clock, allowing for optimization between efficiency and external component size.
• Robust Protection Features: It includes overvoltage, overtemperature, and short-circuit protection, enhancing the reliability and longevity of the application.

Applications

The LTC3119IFE is ideal for a variety of applications, such as:

• Portable power devices
• Automotive and industrial power systems
• Uninterruptible power supplies (UPS)
• Multi-cell battery-powered equipment

Package and Availability

The LTC3119IFE is available in a thermally enhanced 28-lead TSSOP package, providing a compact solution for space-constrained applications. Its robust design and comprehensive feature set make it a go-to choice for engineers looking for a reliable power management solution.