TPS76033DBVRG4

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TPS76033DBVRG4 is an integrated 3A linear regulator device which combines a low noise, high PSRR LDO with an adjustable low noise linear regulator. It powers low-voltage, low-current and high-impedance peripherals from a single supplies. The integrated design of the TPS76033DBVRG4 reduces the number of components, provides a compact solution and allows for predictive and consistent performance.

TPS76033DBVRG4 Application Fields

TPS76033DBVRG4 is ideal for a variety of applications including mobile devices and communications, digital cameras, medical imaging, portable electronic equipment and wearable devices. It is an optimal voltage regulator solution for low-noise, low power and long supported life designs.

Compared to other linear voltage regulators, the TPS76033DBVRG4 is more power efficient and more reliable. Specifically, its low dropout voltage, high PSRR and low noise features optimize the design for power consumption, ensuring low self-heating and a smaller form factor.

Moreover, the device features an enable/disable control pin, which allows for power savings during applications in battery-powered systems. It allows for the subsystem to be disabled whenever the system is in sleep mode and hence, no power will be required from the input voltage source. Furthermore, the TPS76033DBVRG4 provides low temperature coefficient, preventing the output voltage from changing due to thermal design.

TPS76033DBVRG4 Working Principle

The integrated design of the TPS76033DBVRG4 combines a low noise, high PSRR LDO with a low-noise linear regulator. The main sections of the device are the LDO regulation, the linear regulator and the SELECT pin. The SELECT pin allows the designer to quickly and easily select between LDO or linear regulator functionality.

The LDO section operates in both sources and sinks and features a 3A switch with a low on resistance. This feature ensures a fast switching action and a low minimum voltage drop. The regulators are able to sustain supply voltages up to 6V with minimum dropout voltage, which improves power conversion efficiency. It also offers excellent ripple rejection, helping to reduce output ripple.

The linear regulator section provides a low output noise of 5μVrms and a wide output voltage range from 0.6V to 5.4V over the specified junction temperature range. The high PSRR of the regulators offers high power efficiency with reduced power dissipation and low self-heating.

The selection between LDO and linear regulator is done by the SELECT pin. When the SELECT pin is open, the regulator will operate in linear mode, while when it is grounded, the device run in LDO mode. This feature provides designers the freedom to switch between operating mechanisms on the same connector.

Conclusion

TPS76033DBVRG4 is a versatile and unique device, offering excellent performance and reliability by combining an LDO and linear regulator in a single device. Ideal for low-voltage, low-current and high-impedance peripherals, it provides the best of both worlds and is an ideal solution for applications that require both low noise and power efficiency.

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