LTM8025EY#PBF

DC-DC converters are widely used in a variety of industries, including telecommunications, automotive, industrial, computer/consumer electronics, aerospace, and defense. The LTM8025EY#PBF, a surface mountable step-down DC-DC converter, is an example of a tool capable of delivering a regulated output voltage from an input voltage that is higher than the output voltage. It consists of a buck switching regulator and a low noise linear regulator.

Features

The LTM8025EY#PBF provides high efficiency power to safety-critical points of load in distributed power systems. It offers an input voltage range of between 4.5V and 44V, adjustable output voltage range from 0.8V to 16V, and an output current of up to 4A. It is also equipped with low noise linear and buck regulation stages, as well as thermal shutdown, overvoltage UVLO, overcurrent protection, and adjustable current limit settings. This DC-DC converter also boasts a wide efficiency range of up to 97.1%, making it suitable for a range of devices.

Applications

The LTM8025EY#PBF is a suitable solution for a variety of applications where high efficiency and/or high power density is required. It is especially suited to automotive, communications, industrial, and military/aerospace applications that require both high efficiency and regulated output. It is also ideal for applications that require sequential start-up with pre-bias voltage outputs, or where rapid transient response is necessary.

Working Principle

The LTM8025EY#PBF works on the principle of a buck switching regulator. In this type of switching regulator, the input voltage is reduced or “buckled” in proportion to the control signal from the regulating circuit. This is done by switching a series inductor on and off at a high frequency. The duty cycle of the switching is directly proportional to the input voltage and the control signal, and thus the output voltage is regulated. The output voltage is then further smoothed using a low-noise linear regulator, providing clean, regulated voltage to the load.

Conclusion

The LTM8025EY#PBF is a high efficiency, step-down, DC-DC converter suitable for a variety of applications. It operates on the principle of a buck switching regulator and features a low-noise linear regulator for extra stability. Its high efficiency and wide input voltage range make it suitable for applications in the automotive, communications, industrial, and military/aerospace markets.