L5974ADTR

L5974ADTR is a high-performance DC-DC step-down switching regulator which operates at an exceptionally low current level. The device features a maximum output current of 2A, an output voltage range of 0.8V to 14V, and an input voltage range of 4.5V to 24V. Additionally, it contains an internal start-up, EnL mode, adjustable overcurrent and over-temperature protection, and a wide range of operating frequency and output voltage ranges.

Application Field

L5974ADTR can be used in a wide variety of consumer, industrial, and audio/video applications where precise control of output voltage is required. It is ideal for applications ranging from power converters for consumer and communication equipment, low noise power supplies for audio/video and consumer products, LCD TFT displays, modems, computing platforms, and audio amplifiers.

Working Principle

The L5974ADTR features an internal switching regulator that utilizes pulse width modulation (PWM) to regulate the voltage across the inductor in the circuit. When the output voltage drops below the set point, the device switches on, drawing energy from the input supply. The built-in overcurrent and over-temperature protection ensure safe operation and reduced power losses. The output voltage is maintained by adjusting the peak inductor current via the input voltage as well as the on-time of the device.

The device is also capable of operating at high efficiency due to the integrated intelligent logic circuit that reduces switching losses. This intelligent logic circuit also enables easy synchronization to the input clock by sensing clock edges. The start-up mode is designed for immediate load startup. It is also designed for low-range control and very low quiescent current operation.

Conclusion

The L5974ADTR is a high-performance, low-noise, full-featured DC-DC step-down switching regulator that operates at an exceptionally low current level. Its maximum output current of 2A, an output voltage range of 0.8V to 14V, and an input voltage range of 4.5V to 24V make it perfect for a wide variety of consumer, industrial, and audio/video applications. Its built-in EnL mode, adjustable over-current and over-temperature protection, as well as its wide-range of operating frequencies and output voltage ranges, make it an ideal choice for a variety of applications. In conclusion, the L5974ADTR is a highly-efficient, full-featured switching regulator for AC-DC power needs.