LT3759HMSE#PBF

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The LT3759HMSE#PBF is a high efficiency, synchronous step-down DC-DC converter in the 57-pin QFN package. It is mainly used for high current point-of-load applications and requires a minimum number of external components for performance and ease of use. It is designed to provide superior load and line regulation, fast transient response, and 3-pin enable control with very low active and standby current consumption. Its key features include stable skip-mode operation, adjustable switching frequency, adjustable current limit, adjustable soft-start, output current foldback protection, and hiccup-mode short-circuit protection.

The LT3759HMSE#PBF is designed for applications where a highly efficient power supply is required. It offers a wide range of input voltages and output currents, making it suitable for various applications such as LED lighting, communications equipment, automotive power systems, and medical devices. It also supports Power-over-Ethernet (PoE) and digital isolator applications.

The working principle of the LT3759HMSE#PBF relies on the synchronous generation of output voltage from input voltage. The LT3759HMSE#PBF uses pulse-width modulation to control the inductor current by controlling the duty cycle of the operating switch. The inductor current is then regulated by sensing the output voltage and then adjusting the duty cycle accordingly.

The LT3759HMSE#PBF is highly efficient, providing up to 95% regulated output voltage. It is a synchronous step-down regulator, which means that the output voltage is always the same or lower than the input voltage. Additionally, it has excellent line and load regulation and high switching frequency, which ensures that the output voltage is always stable and has a low output ripple.

The LT3759HMSE#PBF also features enable control with 3 pins, adjustable operating frequency, adjustable current limit and adjustable soft start, as well as output current foldback protection and hiccup mode short circuit protection. This makes it ideal for applications where high efficiency, stability, and protection are required.

The LT3759HMSE#PBF is a high-performance synchronous step-down DC-DC switching controller that is optimized for high-current point-of-load (POL) applications. Its wide input voltage, adjustable frequency and current limit, as well as excellent line and load regulation make it an ideal solution for modern power management applications. It is an ideal choice for applications such as LED lighting, communications equipment, automotive power systems, and medical devices.

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