TPS76050DBVT Integrated Circuits (ICs)

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TPS76050DBVT is a low quiescent current, high-efficiency linear voltage regulator IC with a voltage range of 1.8V to 5.5V and a low dropout voltage of 260mV. It suits mainly embedded designs, automotive or industrial applications. It is a space-saving device requiring only 1.0mm of fixed height and is suitable for 1.8V to 2.5V power supply designs.

TPS76050DBVT consists of two low dropout (LDO) linear regulators with a maximum output current of up to 500mA each, one for positive and one for negative voltage outputs. It provides an integrated adjustable current limit and over-temperature protection with a 1% accuracy of output voltage. Also, it has a shutdown logic control signal for power-saving mode control. This control signal can be used to shut down the regulators when the load current drops below a certain level. This helps to save power when the device is not in use.

The working principle of TPS76050DBVT is based on the linear regulators which keep the output voltage relatively constant over its specified range despite variations in input or load. It uses the Simple LDO (Low Dropout) Regulator schematic where resistor R1 is a current sense resistor which has one end connected to the load and the other end connected to the output of the regulator. The current sense resistor R1 senses the current flowing through the load and adjusts the voltage regulator to maintain constant voltage across the load. The input voltage is regulated by the voltage regulator which compares the input voltage to the reference voltage Vref and adjusts the output current to maintain the output voltage at a constant Vout. The feedback voltage of Vref may be set in the range from 1.8V to 5.5V.

TPS76050DBVT is a suitable IC for portable applications, automotive systems, industrial systems, and communications equipment. It is a space-saving design that offers very low quiescent and shutdown current, fast transient response and wide input voltage range, and low output voltage noise at low frequencies. It also offers very low output noise over a wide temperature range and adequate protection from short circuit and over temperature conditions. The integrated adjustable current limit and over-temperature protection provide a reliable output for a variety of applications.

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