BU33UA3WNVX-TL Integrated Circuits (ICs)

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BU33UA3WNVX-TL is a linear voltage regulator, which belongs to the voltage regulator family of PMICs (Power Management ICs). It is an integrated circuit (IC) designed to provide a regulated output voltage at either a constant current or constant voltage in response to an applied load. The BU33UA3WNVX-TL is an advanced three terminal low dropout (LDO) voltage regulator IC that offers good line and load transient behavior and low quiescent current. It offers high accuracy, programmable output voltage and wide supply voltage range.

Features

• Input voltage range: 0.8 V to 5.5 V
• Output voltage range: 0.8 V to 6.5 V
• Dropout Voltage: 0.9 V
• Maximum Output current: 3 A
• Operating junction temperature range: -40°C to +125°C
• Quiescent current: 195uA
• High output voltage accuracy: ±2%

Applications

The BU33UA3WNVX-TL is suitable for a wide range of applications, including voltage regulation in consumer electronics and industrial products, battery management, motor control, and other voltage-controlled systems. It is also well suited for powering both analog and digital circuits. Due to its low dropout voltage, it can be used as a replacement for a linear regulator.

Working Principle

The BU33UA3WNVX-TL is a linear voltage regulator that operates by comparing an internal reference voltage to an external voltage. The output voltage is then adjusted in order to maintain the difference between the two voltages. This adjustment is performed using a combination of a reference voltage divider and a variable resistor within the regulator circuit. When the sensed output voltage is equal to the reference voltage level, the variable resistor adjusts the signal level in order to achieve the desired output voltage.

The BU33UA3WNVX-TL is equipped with advanced protections and safe guards that protect the device from overvoltage, over temperature, and current-limiting conditions. The device also features an open-drain Power Good signal that indicates when the regulated output voltage is within a predetermined range. This signal can be used to control power sequencing.

Conclusion

The BU33UA3WNVX-TL is a versatile three terminal low dropout linear voltage regulator that is well suited for a wide range of applications. It is designed for low quiescent current and high efficiency, and features better line and load transient performance than most standard linear regulators. Its output voltage is programmable and its wide input voltage range allows it to be used in a variety of different circuits. With its advanced protections, it is a great choice for voltage regulation and power management solutions.

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