LX8117B-05CST

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The LX8117B-05CST is a DC-DC buck regulator with a synchronous rectification architecture. It is designed to provide a highly efficient and low-noise low-voltage output from a wide Vin range. With its wide input range, the LX8117B-05CST is suitable for automotive, industrial control, medical, and communication applications.

The LX8117B-05CST has an adjustable output voltage range that is within 0.8V to 4.5V. It has an input voltage range of 3.5V to 32V, making it suitable for applications such as notebook adapter and industrial battery management systems. It features an I2C/PMBus interface enabling readback of output voltage and current as well as remote programming capability. The device also has a selectable 400kHz/2MHz operating frequency and is able to switch at a pulse-width modulation ratio of 95%.

The LX8117B-05CST is able to achieve a peak efficiency of over 95%. This is possible by using synchronous rectification architecture, which prevents current recirculation by directly modulating the MOSFETs during switching. This helps to reduce the switching losses and to increase the overall efficiency of the device.

The LX8117B-05CST is also designed with a high-frequency operation, allowing for a small device size. This feature is particularly useful for applications that require a low-profile solution. The device has a very low output current-ripple of 10mV at an output current of 3A. This makes the LX8117B-05CST suitable for noise-sensitive applications.

The LX8117B-05CST is protected against over-current and over-temperature conditions, making it a reliable and robust solution. Its synchronous rectification architecture also enables it to reduce switching losses, making it more power efficient. The device is protected by ceramic package which allows for better heat dissipation and increased reliability.

In short, LX8117B-05CST is an efficient DC-DC buck regulator featuring wide input voltage range and adjustable output voltage range. It has selectable 400kHz/2MHz operating frequency and can switch at a pulse-width modulation ratio of 95%. The device also has a very low output current-ripple, making it suitable for noise-sensitive applications and protected against over-current and over-temperature conditions. Its synchronous rectification architecture reduces switching losses, making it more power efficient. The device is also protected by ceramic package, which allows for better heat dissipation and increased reliability.

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