TL4051AQDBZR

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TL4051AQDBZR Application Field and Working Principle

The TL4051AQDBZR is a linear Voltage Regulator with 5V fixed output from Texas Instruments. It is designed for application fields where low power usage is the top requirement and is categorized as a PMIC (Power Management Integrated Circuit). It has an adjustable and wide input voltage range between 2.7V and 40V and a low quiescent current of just 2.1mA.

The TL4051AQDBZR is a voltage reference or low-dropout voltage regulator (LDO). It is designed to provide a regulated output voltage with minimum variation over a wide range of input voltages, while providing protection against excessive current loads and input voltage. This device is suitable for use in both portable and desktop computing applications, and it is also employed in automotive, industrial and healthcare systems.

The working principle of the TL4051AQDBZR is based on a three-terminal regulator. It uses an internal reference voltage to maintain a constant output voltage regulated through an error amplifier. This error amplifier constantly checks the output voltage, and compares it with the internal reference voltage. It then sends a signal to an output transistor to adjust the output voltage accordingly. This keeps the output voltage at a level that is close to the internal reference voltage, regardless of changes at the input or load.

The TL4051AQDBZR is designed to work over a wide input voltage range and with low dropout voltage. The device also has a low quiescent current and offers high output voltage precision. It has an adjustable output voltage range between 2.7V and 40V, with a typical output tolerance of 1%. The device is available in SOT-23-5, SOT-23-6, Sopp-8 and wafer-level chip-scale packages.

The TL4051AQDBZR has a variety of features that make it suitable for low-voltage applications. The device has an adjustable under-voltage lockout (UVLO) to protect the device from current overload, reverse-polarity protection, a power good signal indicator (PGOOD) and a high-impedance shutdown mode that allows users to draw just micro-amps of current when the device is in shutdown mode.

In summary, the TL4051AQDBZR is a three-terminal low-dropout linear voltage regulator that is designed for low-power applications. It is available in a variety of packages and has an adjustable output voltage range between 2.7V and 40V. The device offers an output voltage tolerance of up to 1% and has a variety of features, including under-voltage lockout, reverse-polarity protection, a power good signal indicator and a high-impedance shutdown mode. It is a Voltage Reference device categorized under PMIC (Power Management Integrated Circuit).

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