LT3501IFE#TRPBF

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The LT3501IFE#TRPBF is a high performance DC-DC converter controller designed for applications that require high efficiency and low noise. It integrates two switching controllers and provides a complete synchronous flyback, SEPIC, or isolated bridge converter control solution.

The main application field of the IC is power supply design for portable products, like laptop computers, Walkmans, cellular phones, PDAs, digital cameras, and many other high current, low voltage applications. The IC is specifically designed to provide high efficiency and low noise operation.

The LT3501IFE#TRPBF DC-DC converter controller integrates two oscillators and two power controller stages with a number of features to minimize external components and reduce board space. It combines voltage mode, current mode, PFM, and PSM control. The output stages use MOSFET drivers and modulated gate drive current to achieve efficient, low noise, and low cost operation. It includes feedback compensation, voltage sensing, temperature sensing, on-chip soft-start, slew rate control, frequency dithering, open loop startup, Burst Mode® operation, and green/skip frequency operation.

The basic working principle of the LT3501IFE#TRPBF is as follows: The input voltage is rectified by a bridge rectifier. The rectified input voltage is then regulated by the on-board DC-DC converter controller. The output voltage is regulated by comparing the regulated input voltage to a reference voltage and adjusting the current in the output stage accordingly.

The LT3501IFE#TRPBF DC-DC converter controller is designed to provide a complete synchronous flyback, SEPIC or isolated bridge converter control solution. It helps to minimize external component count and reduce overall solution size. It has a low quiescent current consumption and low noise levels. It also offers high efficiency, high power density, and a wide input voltage range.

In summary, the LT3501IFE#TRPBF is a high performance DC-DC converter controller that offers a complete synchronous flyback, SEPIC, or isolated bridge converter control solution. It is specifically designed for portable applications that require high efficiency, low noise operation, and that can takes advantage of the chip’s low quiescent current consumption and wide input voltage range.

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