LT1618EMS#PBF: Step-Up DC/DC Converter

The LT1618EMS#PBF is a compact, high-efficiency, step-up DC/DC converter from Linear Technology, a brand of Analog Devices. This versatile component is designed to meet a wide range of power requirements while maintaining a small footprint, making it an ideal solution for space-constrained applications. The LT1618EMS#PBF comes in a 10-pin MSOP package, offering a combination of performance and size that is suitable for portable devices, industrial equipment, and many other electronics requiring a reliable power boost function.

With an input voltage range of 1.2V to 15V, the LT1618EMS#PBF can efficiently convert lower voltage sources to higher voltages, providing an adjustable output that can be set from 1.24V up to 18V. This flexibility makes it a perfect choice for systems that need to run off various battery chemistries, including single-cell Li-Ion or multi-cell alkaline/NiMH configurations.

The LT1618EMS#PBF utilizes a constant frequency, current mode architecture, which allows for stable operation over a wide range of supply and output voltages. A high switching frequency of up to 1.6MHz enables the use of small, low-cost capacitors and inductors, further reducing the overall solution size and cost. Additionally, the device features internal soft-start capability, which limits inrush current during startup, contributing to system reliability.

One of the key advantages of the LT1618EMS#PBF is its high efficiency, which can reach up to 96%. This efficiency is maintained over a wide output current range, thanks to its low quiescent current and the use of a low V<sub>CESAT (saturation voltage) switch. Over-temperature protection and a current limit provide additional safety mechanisms, ensuring the converter operates within safe parameters under various conditions.

To accommodate different design needs, the LT1618EMS#PBF also includes a shutdown pin, which reduces the supply current to less than 1µA, providing an effective power-down option that extends battery life in portable applications. Overall, the LT1618EMS#PBF is a robust, flexible, and efficient solution for stepping up voltage in a wide array of electronic systems.