MP86981DU-LF-Z

Series:	*
Packaging:	Tape & Reel (TR)
Part Status:	Active

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MP86981DU-LF-Z Application Field and Working PrincipleThe MP86981DU-LF-Z is a DC/DC synchronous step-down regulator. It is one of the new generations of high-performance power management integrated circuits (PMIC). The MP86981DU-LF-Z is intended for applications that require a regulated output voltage with a wide input voltage range. It offers superior performance and ease of use compared to other DC/DC switching regulators. In addition to providing excellent power efficiency and low ripple, the MP86981DU-LF-Z is also a highly integrated solution that requires minimal external components.The MP86981DU-LF-Z is suitable for applications such as hand-held electronics, consumer electronics, automotive electronics and communications systems that require a wide input voltage range. It has a simple design, which makes it ideal for space-constrained applications. The regulator consists of two parts: the converter module and the control module.The converter module is the main component of the MP86981DU-LF-Z and is responsible for providing the desired output voltage. It consists of two power switches, an inductor and two capacitors. The power switches are driven by the output of the control module. When the power switches are closed, the inductor stores energy, and when the power switches are opened, the energy is released to the output side and the output voltage rises.The control module of the MP86981DU-LF-Z is responsible for controlling the switches, regulating the output voltage and protecting the circuit from overloads and short circuits. It consists of an external compensation network, current sensing circuitry and a PWM controller. The external compensation network is responsible for setting the output voltage. The current sensing circuit detects the output current, while the controller modulates the power switches to maintain the output voltage.The MP86981DU-LF-Z is designed to operate in a wide input voltage range of 2.5V-16V. The output voltage is set using an external resistor divider and can be programmed up to an adjustable voltage range of 0.8V to 3.3V. The output current can be set up to 4A and the device features a switch-on current limit of 0.1A. The efficiency of the MP86981DU-LF-Z is low at the light load.The MP86981DU-LF-Z also offers a number of protection features to ensure safety. It can withstand transient overvoltages and output short-circuits. It also has a thermal shutdown protection to protect the device from overheating.In sum, the MP86981DU-LF-Z is a DC/DC synchronous step-down regulator that offers excellent performance, low power consumption, and protection features. It is ideal for applications that require a regulated output voltage with a wide input voltage range. The regulator can be used in hand-held electronics, consumer electronics, automotive electronics, and communications systems.

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