LT3686AEDD#PBF

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The LT3686AEDD#PBF is a versatile DC-DC switching regulator that belongs to the category of PMIC - Voltage Regulators - DC DC Switching Regulators. It is suitable for a variety of applications including hand-held and portable products, as well as for industrial and automotive systems. In addition, it is well-suited for power management in utility and communications applications.

The LT3686AEDD#PBF features a wide input voltage window that extends from 4.5V to 60V and draws only 75µA quiescent current. It is optimized to minimize component cost and board space. It also features a PWM/PFM mode selector, and a low IQ mode of <3µA.

The versatile operation allows the LT3686AEDD#PBF to be used in a variety of applications. It can be used to provide a wide range of output voltages, from 0.5V to 90V, making it well-suited for applications such as the automotive power distribution systems, battery charger systems, telecom power supplies and general industrial power supplies.

The working principle of the LT3686AEDD#PBF is best described by its two-stage architecture. The first stage of its operation is meant to provide a constant output voltage with excellent line and load regulation over a wide input voltage range. This is all done using the feedback programmed output, the voltage sense line, and the external components on the board.

The second stage of its operation is used to control peak inductor current, as well as provide synchronized frequency switching. This is done with a current sense resistor and an external shutdown pin. A built-in controller is used to control the external FET or the N-channel MOSFET to switch between the low and the high side.

The LT3686AEDD#PBF features a wide range of protection features including short-circuit protection, an under-voltage lockout (UVLO) feature, and an adjustable frequency synchronization. Its very low operating current makes it an ideal solution for a wide range of applications and its versatility allows it to be implemented into almost any system.

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