TPS76132DBVTG4

TPS76132DBVTG4 Application Field and Working Principle

The TPS76132DBVTG4 low noise linear voltage regulator is an excellent solution to power supply noise issues, offering adjustable output voltage up to 12.5V and low output noise of 5mVpp. Designers can use this regulator to power their circuits with controlled voltage, while achieving excellent performance in terms of noise and low dropout voltage.

Application Field

The TPS76132DBVTG4 is designed for a wide range of electronics applications, primarily for those requiring a rugged, low-dropout solution for fixed output voltage in the range of 5V to 12.5V. It is suitable for powering digital and analog circuitry, as well as audio and video applications, such as amplifiers, receivers, and digital-to-analog converters (DAC). Additionally, it can be used in any application where a seamless, accurate power supply voltage is desired.

Working Principle

The TPS76132DBVTG4 operates on the principle of a linear voltage regulator, which works by adjusting the input voltage according to the voltage setting of the external resistor divider connected to the adjustment pin (ADJ). It takes the incoming voltage on the input supply pin (VIN) and adjusts it to the regulated output voltage (VOUT). It works by measuring the difference between the output voltage across the load and the desired setpoint voltage. If the output voltage rises above the desired setpoint, the regulator decreases the input voltage, while if it falls below the setpoint, the regulator attempts to increase the input voltage. This process of regulating the input voltage is known as feedback regulation and makes it possible to maintain a steady output voltage.

The TPS76132DBVTG4 uses several additional features, such as over-temperature protection, to further ensure uninterrupted system functions. Additionally, it includes Built-In Thermal Shutdown that can protect the system in cases where the suspected supply voltage is dropped below the regulated voltage level. This feature is based on the regulator\'s internal thermal sensing architecture and shuts off the regulator with a resulting step-down of the output voltage. After the temperature returns to an acceptable levels, it automatically restarts the regulator for continued operation.

Conclusion

The TPS76132DBVTG4 low noise, low dropout linear regulator is an excellent choice for solving power supply noise issues. With adjustable output voltage from 5V to 12.5V, low output noise of 5mVpp, over-temperature protection, and an integrated thermal shutdown, this regulator provides reliable operation for a wide range of electronics applications.