LT3579EFE#PBF

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The LT3579EFE#PBF is a versatile DC-DC voltage regulator which combines a current mode switching controller with an external N-channel MOSFET. It is specifically designed for high efficiency low noise buck, boost and inverting synchronous and inverting applications, and it also provides a range of safety and protection features.

The LT3579EFE#PBF has a wide input voltage range of 6V to 42V, a wide output voltage range of 0.75V to 42V, and a high efficiency of up to 96%. It also features over-current protection, over-voltage protection, under-voltage lockout and thermal shutdown. The switching frequency can be adjusted from 200kHz to 2MHz with a single resistor which allows for easy frequency hopping and optimization. The high switching frequency also enables the use of small external components.

The LT3579EFE#PBF is well suited for use in applications such as DC/DC converters, distributed power supplies, computer peripherals, LCD displays, automotive systems and industrial equipment. It is available in an 8-pin or 10-pin MSOP package.

Working Principle

The LT3579EFE#PBF is based on the current-mode control switching regulator principle, which is commonly referred to as a buck converter. In this type of controller, the output voltage is regulated by controlling the current flowing through the external MOSFET. This current is regulated by sensing the voltage across a sense resistor (RSense), which is usually connected in series with the output. The sensed voltage is used to generate an error signal which is then used to adjust the output voltage by controlling the duty cycle of the MOSFET.

What makes the LT3579EFE#PBF special is its wide input and output Voltage range, high efficiency, and the ability to easily adjust the switching frequency with a single resistor. This enables a highly efficient and low noise DC-DC switching regulator for a variety of applications. The output voltage is also protected from over-voltage and under-voltage conditions, and it features over-current protection and thermal shutdown.

The LT3579EFE#PBF is a versatile and high-performance DC-DC switching regulator that is well-suited for applications such as distributed power supplies, computer peripherals, LCD displays, automotive systems and industrial equipment.

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