LX1673-03CLQ

The LX1673-03CLQ is a low dropout (LDO) linear regulator from ON Semiconductor. This voltage regulator offers optimized performance for any design which requires good transient performance, low noise and low cost. Here we discuss the application field and working principle of the LX1673-03CLQ.

Application Field:

The LX1673-03CLQ is designed for higher current applications, such as LED lighting, mobile device power supplies and industrial equipment. It is suitable for both commercial and automotive grade applications, with large maximum power dissipation and fast current limiting. The device features a low dropout voltage of 0.5V over the temperature range, allowing it to operate at a wide range of input voltages. The wide temperature range of -40°C to 150°C makes it suitable for even the most extreme conditions.

Working Principle:

The LX1673-03CLQ is a current regulator, capable of delivering up to 3A of continuous current and up to 5A of peak current. The device utilizes a current mirror-based architecture to regulate the load current, with only minor changes in the load current due to changes in the load resistance. The device also features an output voltage accuracy of 0.8%, with a minimum output voltage of 1.2V and a maximum output voltage of 6V. Additionally, the device features a low temperature coefficient, ensuring that the output voltage remains constant over a wide range of operating temperatures.

The LX1673-03CLQ also features enhanced output voltage accuracy and fast transient response, thanks to its advanced compensation loop. The compensation loop, combined with a low output voltage ripple, ensures that the output voltage remains reasonably stable over all operating conditions. In addition, the device features a low quiescent current draw, further reducing power dissipation in low power applications. The device also features short circuit protection and over voltage protection, ensuring that the device can safely and reliably deliver power to the load.

Overall, the LX1673-03CLQ is an excellent solution for applications that require high current delivery, low dropout voltage and excellent output voltage accuracy. The wide operating temperature range and added protection features ensure that the device can safely and reliably deliver power to the load, even in extreme conditions, making it suitable for both commercial and automotive grade applications.