MP24971DN-LF

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The MP24971DN-LF is a non-synchronous buck step-down regulator that provides a wide input voltage range while delivering maximum output power up to 10A. It is ideal for cost-sensitive and space-constrained applications, such as handhelds and other consumer electronics products. It offers a low quiescent current, a low dropout voltage, and a high efficiency over the entire input voltage range. It can be used to provide a regulated voltage for digital electronic circuits, such as microcontrollers, DSPs, ASICs, and FPGAs.

Application Field of MP24971DN-LF

The MP24971DN-LF is used in various application fields, such as :

• Industrial and Automotive
• Portable Electronics
• Metering
• Power Adapters
• Medical Equipment
• LED Drivers
• Solar Power Systems
• Battery Management
• Telecommunication Equipment

Its unique features, such as its high efficiency, low quiescent current, wide input voltage range and low dropout voltage, make it an ideal solution for battery-operated equipment, such as wireless routers and access points, cellular phones, PDAs and digital cameras.

Working Principle of MP24971DN-LF

The MP24971DN-LF is a synchronous step-down regulator with PWM control, designed to provide regulated output voltage in a wide range of applications. The regulator switches between two operating modes: discontinuous conduction mode (DCM)and continuous conduction mode (CCM). In DCM, when the output voltage decreases below a certain point, the controller enters a burst-mode operation, reducing the switching and switching loss. In CCM, the controller keeps switching at a constant frequency, thus increasing the efficiency.

The MP24971DN-LF provides an internal compensation network, which reduces the variations in the output voltage. The onboard current-sense amplifier enables users to program the output current with sense resistors. An integrated voltage error amplifier further enables users to adjust the output voltage, provided it does not exceed the device’s maximum output voltage. The device also features a power-ok output that alerts the user when the output voltage has dropped below a certain threshold.

The MP24971DN-LF also provides a power-saving mode, which reduces the power consumption of the device when the output voltage is in the regulation range. The power-saving mode will automatically enter latch mode, reducing the switching losses and improving overall efficiency. The device has an adjustable soft-start feature to protect the circuit from high inrush current.

The MP24971DN-LF is designed to operate at an operating temperature range of -40 to +125°C. The device is protected against output voltage overshoot, over-temperature, and over-current.

In summary, the MP24971DN-LF is a cost-effective solution for providing regulated output voltage in various application fields, such as industrial and automotive, portable electronics, metering, power adapters, medical equipment, and more.

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