TPS76428DBVT

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TPS76428DBVT Application Field and Working Principle

TPS76428DBVT is a linear voltage regulator, belonging to the family of high-efficiency voltage regulator for portable applications. It is a three-terminal, low-dropout (LDO) regulator designed to support a wide range of applications, from low-power to high-power applications. The TPS76428DBVT supports input voltage range from 2.7V to 5.5V, and output voltage range from 0.6V to 4.5V, with a maximum output current of 2A. It offers excellent line and load regulation, reverse battery protection, as well as current limit protection and thermal protection to ensure stability and reliability.

The TPS76428DBVT is housed in a thermally-efficient 3mm x 3mm package, with a dropout voltage of only 135 mV, making it ideal for space- and energy-constrained applications. The package is also designed for minimal thermal resistance and excellent thermal performance, making it suitable for high-power applications. In addition, the TPS76428DBVT also features a low quiescent current of 30 uA, low operational voltage ranges, and fast transient response, making it a great choice for battery-powered applications.

This linear voltage regulator works on the principle of feedback control. A feedback loop is used to compare the actual output voltage of the regulator to the preset value of the output voltage. The regulator functions by controlling the voltage across a resistor, a load, or an inductor in the circuit. When the output voltage is lower than the preset voltage, the regulator increases the voltage across the load and vice versa. This regulated output voltage is then set across the output terminal of the regulator. The output voltage is thus precisely regulated to maintain a constant level, regardless of the load conditions or input voltage variations.

The applications of the TPS76428DBVT include automotive and industrial systems, portable electronic equipment such as laptop computers, wearables, and any system where a constant and accurate voltage is needed. It is also used in a range of portable applications, including power supplies, battery chargers, and motion control systems. The device is also suitable for a wide variety of applications, such as point-of-care medical devices, embedded systems, and industrial instrumentation.

In conclusion, TPS76428DBVT is a high-efficiency, linear voltage regulator which is ideal for space- and energy-constrained portable applications. It features a wide input voltage range from 2.7V to 5.5V and an output voltage range from 0.6V to 4.5V, with a maximum output current of 2A. It also offers excellent line and load regulation, reverse battery protection, current limit protection and thermal protection to ensure reliability and stability. Furthermore, it is also suitable for a range of applications, including automotive, industrial, and medical systems.

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