MAX20751EKX+

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The MAX20751EKX+ is a synchronous DC-DC step-down controller designed to provide high efficiency and excellent performance in a wide variety of applications. This controller is suitable for use in many applications including mobile communications, industrial electronics, computer, and consumer products. It features a wide input voltage range of 4.5V to 20V, adjustable output voltage of down to 0.6V, and a maximum output current of 2.6A. It also features integrated 200mΩ and 140mΩ power MOSFET drivers with programmable fixed switching frequencies of up to 2.5MHz. The MAX20751EKX+ offers a wide variety of protection features including over- and under-voltage protection, overcurrent protection, and thermal protection. The controller is designed for high efficiency operation with minimal power and heat management concerns. Its integrated PWM dimming feature, specifically designed for LED lighting applications, improves LED power efficiency and extends LED life. The MAX20751EKX+ controller is designed to be used in a variety of applications including LDOs and split supplies, such as voltage conversion applications for powering PLLs, RAMs, and video processors. Powering industrial electronics, systems using FPGAs, digital signal processors, and microcontrollers are also supported. This controller is also suitable for use in liquid crystal displays, lighting, and other power sensitive applications. The MAX20751EKX+ is available in 8-pin SOIC and 6-pin TDFN packages. The working principle of the MAX20751EKX+ is based on a synchronous buck converter that regulates the output voltage at a predetermined level using the feedback loop and a reference voltage. It integrates a 200mΩ and 140mΩ power MOSFET drivers that enable the use of low ESR (Equivalent Series Resistance) MOSFETs for higher efficiency and low loss in the switching converter circuit. The output voltage is regulated by controlling the duty cycle of the Pulse Width Modulation (PWM) signal to the MOSFET driver with the help of the feedback loop.When the power supplied to the MAX20751EKX+ is turned on, the MOSFET switches connect the input voltage to the output. When the power is turned off, the MOSFET switches disconnect the input voltage from the output. The MOSFET switches are driven by the internal PWM control circuit to control the output voltage. The PWM control circuit varies the MOSFET switching ratios for a given load condition to regulate the output voltage.The MAX20751EKX+ also offers integrated soft start ramping that reduces inrush current during start-up, reducing the output voltage overshoot caused by the large transient current. It also integrates over-temperature protection that monitors the junction temperature when the maximum threshold is exceeded, to reduce the risk of damage due to thermal overstress.The MAX20751EKX+ is a versatile and reliable device for powering a variety of applications including power supplies, industrial electronics, and consumer products. It provides high efficiency and excellent performance in a wide variety of application fields. With its advanced features, the MAX20751EKX+ is well-suited for powering the latest generation of processors and microcontrollers.

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