LT3757EDD#TRPBF

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LT3757EDD#TRPBF Application Field and Working Principle

LT3757EDD#TRPBF is a type of DC-DC switching controller which underlies a range of power management applications. It creates a regulated output voltage with low power consumption, high efficiency, and fewer external components. The controller can adjust the variable load and output voltage and works in either of two modes: waveform mode or voltage mode.

Application Field

The LT3757EDD#TRPBF is a monolithic switching regulator which provides complete control in either voltage or waveform mode. The waveform mode facilitates a wide variety of applications such as automotive, industrial Automation, system controllers, and battery charge systems. This switching regulator also provides a high output current capability across a wide input voltage and temperature range, making it suitable for a variety of industrial, automotive, and consumer applications.

The internal synchronous rectifier converts the input voltage to the predetermined output voltage without the need for an external MOSFET. The internal synchronous rectifier provides safe and important power saving by reducing power losses. It is protected against surge voltages and has a wide input voltage range.

Working Principle

When operating in waveform mode, the LT3757EDD#TRPBF provides frequency and phase control, which allow for high-efficiency power conversion. It operates off of a clock signal so that the user can program the average output voltage to match their system\'s needs. Phase control allows for the output current ripple to be minimized, which increases the efficiency of the converter.

The LT3757EDD#TRPBF operates in voltage mode to deliver an accurate output voltage with low ripple. In voltage mode, the controller follows the signal-to-output voltage with a low harmonic distortion. The design of voltage mode is also optimized to minimize power loss even under difficult conditions.

The LT3757EDD#TRPBF also features a high-efficiency pulse width modulation control (PWM). This control technology automatically maintains the output voltage to within a very tight tolerance from the target value. The PWM control also allows for a wide range of output voltages and high efficiency.

The LT3757EDD#TRPBF also features advanced protection features. It has over-voltage, over-current, over-temperature, and short- circuit protection. These features protect the device against current spikes, excessive temperatures, and high-output voltages.

Conclusion

The LT3757EDD#TRPBF is a DC-DC switching controller designed to deliver high-efficiency, low-power conversion in either waveform or voltage mode. The high-efficiency pulse width modulation control maintains the output voltage to within a very tight tolerance, while the protection features protect the device against a wide range of potential hazards. The controller is suitable for a variety of industrial, automotive, and consumer applications.

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