LT3753IFE

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The LT3753IFE is a precision, high performance, synchronous step-down switching controller that operates with a wide input voltage range of 2.7V to 36V. It features accurate zero current transitions (ZCT) and programmable transition times that minimize switching losses and power supply ripple. Additionally, the LT3753IFE contains a programmable soft-start circuit and can be set to operate at various switching frequencies.

In applications such as distributed power supply systems and communications infrastructure, the LT3753IFE provides a cost-effective solution by combining the benefits of synchronous switching with the integration of a high voltage MOSFET gate driver and a high voltage current limit circuitry. It is ideal for use in high current, high voltage applications and can be configured as a single or multiple output buck converter for use in multi-output systems.

The LT3753IFE works by using a sophisticated regulating phase using the step-down regulator. The regulating phase uses voltage feedback from the current sensing circuit to control the output voltage, allowing the output voltage to be set precisely. The input voltage to the converter can vary from 2.7V to 36V and can support up to 24A of continuous load current. The LT3753IFE also features programmable soft-start, high-voltage current limit, and adjustable switching frequency.

The LT3753IFE offers a wide range of features, including internal programmable switching frequency, soft-start, and current limit functionality. It also offers an integrated gate driver and programmable transition times and ZCTs, which minimize switching losses and power supply ripple and improve efficiency. The part is packaged in a standard 8-lead EPAD or SO-8 package.

In addition, the LT3753IFE is also capable of operating in a discontinuous mode for low output voltage applications as well as suppresses a voltage spike generated on the power supply during normal operations. This allows for safe and efficient operations and means there is no need to install an external suppressor. Furthermore, the LT3753IFE also features sequence and skew pinouts, which help ensure reliable and safe operation by synchronizing the outputs.

The LT3753IFE is a highly efficient, cost-effective DC-to-DC switching controller and can be used in various application areas such as laptops, desktops, servers, data centers, telecom equipment, and industrial applications. Due to the integrated high voltage MOSFET gate driver, it is also well-suited for synchronous conversion in medium to high power applications. Its wide input and output voltage ranges make it suitable for a variety of distributed power system designs and designs requiring multiple output voltages.

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