TPS73132DBVT

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TPS73132DBVT is a low-dropout positive voltage regulator, which is designed to provide an accurate output voltage from an input voltage range of 1.2V - 6.0V while providing excellent load and line regulation over wide input and output voltage ranges. It is a linear voltage regulator that features low-quiescent current and low-noise operation.

The TPS73132DBVT is ideal for applications where reliable output voltage is essential, such as networking, automotive and industrial systems, for a wide range of current levels. The device’s high current drive capability, low noise and high output current capability make it suitable for low-voltage, mobile and battery-operated systems as well.

TPS73132DBVT Application Field

The TPS73132DBVT is mainly used in low-voltage, mobile and battery-powered systems, and it would provide reliable circuitry for all applications where current drive, transient speed and low noise are important features. Examples would include powered RFID transponders, power conversion systems, power conditioners, distributed power systems, microprocessors, automotive control systems and LED display drivers, etc.

The device can also provide low-dropout, low-impedance regulation, which makes it suitable for applications with high input voltage ranges and/or a large input/output voltage differential. In these applications, the device will provide a regulated output, even under low-load conditions.

Working Principle

The TPS73132DBVT is a classic linear regulator, which uses a series pass element to drop voltage from an applied input to a specific level, its output voltage. This series element can be a transistor, diode or FET depending on the design selection. The main function of the linear regulator is to maintain a consistent output voltage despite input voltage changes, load current changes and operating temperature variation. The basic schematic diagram of the TPS73132DBVT is as follows.

The circuit loop works in such a way that the voltage sensed at the error amplifier input is compared to the reference voltage. This error amplifier output then drives the pass element, which will adjust its current as needed to maintain the output voltage in accordance with the input reference. The output voltage of the regulator is determined by the reference voltage provided, and by the amount of current being passed through the pass element. As current to the pass element is increased or decreased, the output voltage will rise or fall respectively.

When the load changes, or when the input voltage is dropping, the error amplifier output will increase or decrease in order to keep the output voltage constant. The pass element adjusts its current accordingly, thereby providing the authoritative control of the output voltage.

The TPS73132DBVT also includes several protection features to allow for safe system operation and long life. These include overcurrent protection, thermal shut down, and an undervoltage lockout circuit.

The TPS73132DBVT is a very convenient and reliable choice for many applications needing low-dropout, low-current, and low-noise operations. Its low power draw and excellent efficiency make it suitable for small and portable devices, and its protection features will safeguard those devices against disastrous failures in conditions of high temperature or inadvertent overcurrent loads.

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