LT1931AES5 - High Efficiency Boost Converter

The LT1931AES5 is a versatile and compact step-up DC/DC converter from Linear Technology, designed to meet the needs of a variety of applications requiring high-efficiency voltage conversion. This powerful component is capable of generating output voltages up to 34V from an input voltage range of 1.2V to 15V, making it an ideal solution for battery-powered devices, as well as for powering OLED displays, CCDs, and white LEDs.

One of the key features of the LT1931AES5 is its high switching frequency of 1.2MHz, which allows the use of small, low-cost capacitors and inductors less than 2.2μH. This high frequency combined with a constant switching mode ensures low noise operation, which is crucial for sensitive RF and audio applications. The device also includes a single feedback pin architecture, simplifying the design process and minimizing external component count.

The LT1931AES5 employs internal 2A switches, which enable it to deliver output currents up to several hundred milliamps depending on the input voltage and the inductor value. Additionally, the converter features a 'Burst Mode' operation that significantly improves efficiency at low output currents, making it highly suitable for portable applications where extending battery life is of utmost importance.

For protection and reliability, the LT1931AES5 integrates several safety features, including current limiting and thermal shutdown. This ensures that the device operates within safe parameters, protecting both the converter and the load from potential damage due to overcurrent or excessive heat.

Available in a small 5-lead SOT-23 package, the LT1931AES5 is designed to occupy minimal board space, which is beneficial for space-constrained applications. Its robust design and high efficiency make it a preferred choice for designers looking to create compact, reliable, and efficient power supply solutions.

To facilitate easy implementation, Linear Technology provides comprehensive datasheets, application notes, and design simulation tools, helping engineers to quickly and effectively integrate the LT1931AES5 into their designs.