BD9A100MUV-E2 Integrated Circuits (ICs)

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BD9A100MUV-E2 Application Field and Working Principle

BD9A100MUV-E2 is a DC-DC switching regulator in the PMIC (Power Management IC) category, specifically the Voltage Regulators subcategory. This device is an efficient and compact electronic component designed to convert a regulated DC voltage from a high-voltage power source to a lower voltage. The BD9A100MUV-E2 is a buck regulator which reduces input voltage by transferring energy from the input to the output via a series of switching operations. This buck switch mode power supply (SMPS) is based on a single N-channel MOSFET for internal FET switching action. This device is available as 8-pin SOP, S-MASK and DFN packages, each with a maximum low-voltage drop of only 40mV.

Application Field

The BD9A100MUV-E2 can be used in a variety of different applications due to its high efficiency, low input voltage drop and wide input voltage range. Its high-efficiency and low dropout voltage are important features when attempting to regulate the output voltage with high accuracy and very low losses. Its wide input operating voltage range of 6.5 to 24 V enables it to compute up to 3A output current. The BD9A100MUV-E2 switching regulator permits direct drive of audio amplifier loads, video amplifiers, and various other consumer applications.

This DC to DC switching regulator chip can be used in consumer devices such as digital cameras, notebook computers, mobile phones, and tablets. It is also commonly used in home appliances such as LED TVs and smart home systems, and in more specialized applications such as vehicle audio systems, electronic point-of-sale equipment, and electronic classroom display boards.

Working Principle

The BD9A100MUV-E2 is a buck DC-DC switching regulator that works via a series of switching operations. The internal N-channel MOSFET is the main component responsible for internally switching the regulator. With the aid of the internal voltage feedback loop, the converter can regulate the output voltage in the range of 0.8V to 24V depending on the input voltage.

The current mode loop of the BD9A100MUV-E2 sensing MOSFET current provides the necessary current regulation and soft-start function. It is also responsible for controlling the switching frequency of the regulator. With the aid of an external control element, the switching frequency can also be programmed to reduce the EMI noise.

Once powered up, the BD9A100MUV-E2 operates in PWM mode until it reaches the switching frequency. At the switching frequency, the converter quickly enters the Burst Mode®, where it reduces the switching cycle from the given frequency to a few cycles.. During the Burst Mode® Operation. It maintains a low ripple voltage, a high efficiency and improved line and load regulation.

Conclusion

The BD9A100MUV-E2 buck DC-DC switching regulator is a highly efficient and versatile electronic component for a wide range of applications. Based on a single N-channel MOSFET, this regulator is capable of providing up to 3A of output current with a low-voltage drop of only 40mV. The converter is capable of operating over a wide input voltage range of 6.5 to 24V, which makes it suitable for a variety of consumer products. It also SUs a current mode loop construction, which provides current regulation and soft-start functions, as well as the ability to adjust the switching frequency to reduce EMI noise.

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