LT3752IFE

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The LT3752IFE is a high efficiency, high frequency synchronous step-down switching controller, designed for use in wide Vin and current mode control applications. It comes in a space saving 3mm x 3mm DFN package, and features a wide operating voltage range, high frequency operation, high current operation, current mode operation, fast transient response and low noise operation.

The LT3752IFE is a very versatile device and is suitable for a wide range of applications, including voltage regulation for servers, industrial and telecom systems. It can also be used to regulate power for DSPs, FPGAs, and ASICs. Additionally, it can also be used to generate power for battery-powered devices and other portable equipment.

The LT3752IFE is a member of the LT375x family of Switching Controllers. This family of devices provides a complete range of products with a wide selection of features to meet the needs of a variety of power supply design requirements. The LT3752IFE is optimized for use with the LTC6904 high frequency, synchronous buck regulator. The LT3752IFE also features current mode operation and a wide input voltage range of 3V to 30V.

The working principle of the LT3752IFE is as follows. First, an external reference voltage is set to determine the desired output voltage. The internal logic circuit detects the voltage changes on the power supply and adjust the duty cycle of the switching device in order to maintain the desired output voltage. This ensures a stable output voltage even when the input voltage changes.

The LT3752IFE is able to provide high efficiency by operating at a high frequency, typically from 500kHz to 2MHz. This allows for much smaller inductor and capacitor values, reducing component count and cost. The device utilizes an integrated programmable frequency feature that enables the switching frequency to be easily adjusted within the range of 500kHz to 2MHz. This allows designers to adjust the switching frequency to optimize noise and size of the output voltage, as well as lower EMI emissions.

To facilitate easy setup and configuration, the LT3752IFE offers a wide selection of control, protection and monitoring features. These include output voltage sequence, power good signal, power fail signal, power fail and output overvoltage protection, internal soft start, thermal shutdown and output overcurrent protection.

Overall, the LT3752IFE provides a flexible, high efficiency, high frequency synchronous step-down switching controller suitable for a wide range of applications. It features a wide range of features, including current mode control, high frequency operation and programmable frequency, wide input voltage range and low noise operation. Additionally, it is easy to set up and configure, with a wide selection of protection and monitoring features.

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