BU18UA3WNVX-TL Integrated Circuits (ICs)

The BU18UA3WNVX-TL is a voltage regulator from PMIC (Power Management Integrated Circuit) family of linear voltage regulators. It is designed to provide an accurate and stable output voltage with a minimum of external components. It produces a constant regulated output voltage which is adjusted by external resistor divider network. The BU18UA3WNVX-TL voltage regulator is a versatile device that provides optimal performance in a wide range of applications.

Architecture and Features

The BU18UA3WNVX-TL voltage regulator is based on a three-terminal linear regulator architecture. It provides a wide input voltage range of 2.7V to 18V, adjustable output voltage range of 1.8V to 16V, high output accuracy of ±3%, and a low dropout voltage of 0.5V at full load. It has internal thermal shutdown protection and current limit protection with foldback current limit. The output voltage can be trimmed with the external resistor divider network. The BU18UA3WNVX-TL also provides fast transient response and low output noise.

Application Fields

The BU18UA3WNVX-TL voltage regulator is suitable for a variety of applications such as microprocessors, DSPs, ASICs, analog/digital converters, digital transmission systems, power amplifiers, battery-powered systems, automotive electronics, communication systems, digital audio systems, medical systems, and power supplies.

Working Principle

The BU18UA3WNVX-TL voltage regulator works by controlling the input voltage with the help of a voltage reference, an error amplifier, and an output transistor. The voltage reference compares the input voltage with a reference voltage and the error amplifier amplifies the difference between the two. This amplified voltage is used to control the output transistor, which in turn controls the output voltage. The output voltage is adjusted with the external resistor divider network. The three-terminal architecture and the external resistor divider network provide accurate and stable output voltage.

Conclusion

The BU18UA3WNVX-TL voltage regulator from PMIC (Power Management Integrated Circuit) family of linear voltage regulators is designed to provide an accurate and stable output voltage with a minimum of external components. It has a wide input voltage range of 2.7V to 18V, adjustable output voltages of 1.8V to 16V, and a high output accuracy of ±3%. It also provides fast transient response and low output noise. The BU18UA3WNVX-TL is suitable for a wide range of applications such as microprocessors, DSPs, ASICs, analog/digital converters, and many other electronic systems.