TPS79328DBVR

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TPS79328DBVR, offered by Texas Instruments, is an adjustable low-dropout (LDO) linear voltage regulator that has a wide range of applications. It is an innovative IC with wide input voltage range, low noise and low quiescent current. The TPS79328DBVR is designed for various system applications that require a stable supply voltage, such as for microprocessors, graphical processing units, ASICs and FPGAs. This IC is capable of handling output current up to 500mA.

The TPS79328DBVR enables the adjustment of output voltage over a wide range of 1.25V to 6V. The output voltage is adjusted by setting the inverting logic level of EN pin on the device. A high voltage on the EN pin sets the LDO in the enabled state, allowing the output voltage to be equal to the programmed voltage. A low voltage on the EN pin disables the LDO, forcing the output voltage to be 0. The TPS79328DBVR is an excellent choice for applications that require flexible and adjustable output voltages.

The TPS79328DBVR is also equipped with several protection features that ensure reliable operation. It features over-current protection, over-temperature protection, under-voltage lock out, and reverse current protection. The external pull-up resistor keeps the device in a reset state at startup. The protection features help in preventing damage due to sudden voltage or current spikes.

The TPS79328DBVR can be used in a wide range of applications including automotive, industrial, medical and consumer electronic applications. It is ideal for use in voltage regulation in systems with dynamic power requirements such as e-meters, smart meters and Industrial IoT systems. This device also finds use as a replacement for inefficient linear regulators, where superior efficiency and size can be achieved.

The working principle of the TPS79328DBVR is simple. The device utilizes a feedback loop to control the output voltage. An external N-channel MOSFET switch is connected between the input power supply and the output load. The TPS79328DBVR then converts the input voltage to the desired output voltage, regulating the MOSFET switch. The feedback loop measures the output voltage and if it deviates from the programmed output, the TPS79328DBVR adjusts the gate voltage of the switch to regulate the output voltage to the desired value. This process continues until the output voltage stabilizes.

In summary, the TPS79328DBVR is an excellent IC for the various system applications that require adjustable, low-dropout linear voltage regulation. It features wide input voltage range, low noise, and low quiescent current. The output voltage can be adjusted within a wide range from 1.25V to 6V using the external EN pin. An added bonus, the device also comes with multiple protection features to protect against over-current, over-temperature, under-voltage and reverse current. This IC is especially suitable for applications that require adjustable output voltages and superior efficiency, such as automotive, industrial, medical and consumer applications.

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