Linear Technology's LT1936EMS8E - High Efficiency Step-Down DC/DC Converter

The LT1936EMS8E is a compact, high-efficiency, step-down DC/DC converter from Linear Technology, designed to meet the needs of a wide range of applications requiring voltage reduction. This versatile converter is part of Linear Technology's esteemed line of power management integrated circuits, renowned for their reliability and performance.

Encased in an MSOP-8 package, the LT1936EMS8E offers a minimal footprint on the circuit board, making it an ideal choice for space-constrained applications. Its ability to convert input voltages ranging from 3.6V to 36V down to a lower output voltage that is adjustable from 1.25V up to the input voltage minus the dropout, makes it incredibly flexible for various design requirements.

One of the standout features of the LT1936EMS8E is its high switching frequency of 1.1MHz, which allows for the use of small, low-cost inductors and capacitors. This high frequency combined with a constant frequency current mode PWM architecture ensures low, predictable output ripple and noise, which is critical for noise-sensitive applications.

The device also incorporates internal 1.4A power switches, which contribute to a reduced bill of materials and simplification of the overall design. Additionally, the LT1936EMS8E boasts impressive efficiency, which can reach up to 92%, reducing power losses and improving battery life in portable applications.

With features such as a low dropout voltage, the ability to draw a mere 85µA in quiescent current, and a shutdown current of under 1µA, the LT1936EMS8E is optimized for battery-powered systems. Its internal protection features include thermal shutdown, current limiting, and the ability to withstand reverse battery conditions, ensuring long-term reliability and safety for your designs.

In summary, the LT1936EMS8E from Linear Technology is a high-performance, easy-to-use step-down DC/DC converter that offers design flexibility, efficiency, and robustness for a variety of applications, including portable devices, automotive systems, and industrial equipment.