BU23TD2WNVX-TL

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BU23TD2WNVX-TL is a linear voltage regulator from Toshiba Semiconductor and Memory, which is a member of the PMIC - Voltage Regulators - Linear family. It features an output voltage range from 1.8V to 6.0V in 10 steps and an adjustable negative output voltage range from 0V to -4.4V in 19 steps. This device is ideal for use in applications requiring a low voltage dropout, low noise and low quiescent current.

The BU23TD2WNVX-TL allows a maximum input voltage up to 7.0V, making it suitable for various power supply systems. It is also equipped with an adjustable current limit and thermal shutdown protection, making it reliable and robust in operation. It also offers excellent reverse voltage protection.

The BU23TD2WNVX-TL is available in three package types: SOT-25, SOT-223 and DIP8. It is ideal for powering and regulating a wide range of circuits including digital systems, microcontrollers, and audio amplifiers. It is also particularly useful for low voltage regulation in board space constrained systems and battery powered applications.

The BU23TD2WNVX-TL operates on a simple principle. It contains an input voltage (Vin) and output voltage (Vout). The device works by regulating the output voltage to a constant level, regardless of the variations in the input voltage. It accomplishes this by utilizing a voltage divider circuit attached between the input and output voltages. The voltage divider consists of a resistor connected between the input and output, and a Zener diode between the output and ground. The Zener diode is reverse-biased and is designed to turn-on at a specific voltage (Vz).

The operation principle of the BU23TD2WNVX-TL is simple yet effective. As the input voltage increases, the resistor and Zener diode contribute to increasing the voltage drop between the input and output, causing the output voltage to remain constant. On the other hand, if the input voltage drops, the resistor and Zener diode cause the voltage drop to decrease, resulting in the output voltage maintaining the constant level.

The BU23TD2WNVX-TL also features a built-in current limiting circuit that further enhances the output voltage regulation capability. The current limiting circuit monitors the output current and limits it to a maximum safe level when it reaches an excessive value, thus protecting the device against overloading.

In summary, the BU23TD2WNVX-TL is an efficient and reliable linear regulator with a wide range of output voltages and an adjustable output current limit. It is suitable for a wide range of low voltage regulation applications, including microcontrollers, audio amplifiers and board space constrained systems.

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