TPS7A8801QRTJRQ1

TPS7A8801QRTJRQ1: Application Field and Working Principle

The Texas Instruments TPS7A8801QRTJRQ1, a low-noise, low-dropout voltage regulator (LDO), is designed to regulate single- and dual-supply operation in space-constrained, portable, and battery-operated applications. It can provide regulated output voltages of up to 1.8V. The TPS7A8801QRTJRQ1 is considered a low-power linear voltage regulator, allowing it to serve as an efficient, low-power power management solution for a variety of applications.

Features

The TPS7A8801QRTJRQ1 is an adjustable, low-dropout voltage regulator that can provide regulated output voltages up to 1.8V while operating from a single- or dual-supply voltage. It provides a wide range of voltages, from 0.6V to 1.8V, and is capable of regulating 0.6V when supplied with a single supply of up to 5.5V. It operates noise-free, offers up to 200mA of output current, and utilizes a “buried zener” topology to ensure minimal dropout of less than 320mV. It has a power amplifier that ensures the highest possible output current and a further-reduced noise floor, making it ideal for applications that require high output current and low noise.

Applications

The TPS7A8801QRTJRQ1 is an ideal power management solution for mobile communications systems, compute systems, portable equipment, and industrial and automotive systems. It is also used in applications in which low-noise power supply operation is required. The TPS7A8801QRTJRQ1 is suitable for single- and dual-supply applications, enabling it to be used in battery-operated systems.

Working Principle

The TPS7A8801QRTJRQ1 utilizes a “buried zener” topology to keep the dropout voltage at its minimum. When the input voltage is greater than the output voltage, the voltage regulator uses a resistive shunt to control the current between the input and output. When the input voltage is lower than the output voltage, the regulator utilizes an inductive backward-wave shunt to control the current. The TPS7A8801QRTJRQ1 also employs a power amplifier to reduce the output voltage noise floor, allowing it to achieve higher output current even at a low supply voltage.

Conclusion

The TPS7A8801QRTJRQ1 is a low-noise, low-dropout voltage regulator that is ideal for low-power consumption in mobile, automotive, and industrial applications. Its adjustable output voltage range of 0.6V to 1.8V makes it suitable for a wide range of applications. Additionally, its “buried zener” topology with power amplifier ensures minimal dropout and highest possible output current. Finally, it is capable of regulating 0.6V when supplied with a single supply of up to 5.5V, making it an ideal power management solution for battery-operated systems.