TPS77518MPWPREP

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The TPS77518MPWREP is a powerful, high performance linear voltage regulator specifically designed to be used with integrated power line monitors. It has been specifically designed to provide supply sequencing current and output voltage regulation. The TPS77518MPWREP is a versatile device which is suited to a number of applications in the field of power management and is often used in power supply technologies where high accuracy and stability is required.

Overview

The TPS77518MPWREP is a one-channel, linear, wide range, high current, low dropout voltage regulator with switch-mode, voltage feed forward and auto-track current foldback. An internal 5V regulator, with regulated output and feed forward inputs, provide diagnostic and signal conditioning for high efficiency and fast response. The TPS77518MPWREP also features a variety of features including a reference voltage selector, load measurement and low voltage detect, output capacitors and power supplies, built-in UVLO protection and a temperature-sensing thermal foldback circuit.

Parameters

The TPS77518MPWREP is a quality device and provides a number of specifications that enable it to be used in a number of applications. Its input voltage ranges between 2.5V and 20V and is able to handle output currents up to 18A and input capacitance of up to 100μF. The TPS77518MPWREP also features an enable threshold of 1.2V, a maximum output voltage of 15V, power good delay and power good output of 100ms, emission current of 20mA, peak output of up to 1W and a dropout voltage of 160mV.

Applications

The versatile TPS77518MPWREP is suitable for a number of applications, including portable electronics, laptop and desktop computers, telecom equipment, automotive and embedded systems. Additionally, it is ideal for use in systems where power sequencing, current control and stability are essential.

Working Principle

The TPS77518MPWREP works by utilising an internal 5V regulator to reduce the input voltage and produce a regulated output. It employs a transient-load response system with an independent, internal linear current-regulation circuit and a voltage feedback circuit. When the voltage drop across the load reaches 1.2V, the internal linear current-regulation circuit senses the load conditions and reduces the output voltage until the voltage drop is reduced to 0.1V. The voltage feed forward protection feature ensures that the output voltage does not exceed its set limit, thereby preventing it from being damaged. The auto-track current foldback circuit limits current consumption and allows the device to remain in regulation at all times.

Conclusion

The TPS77518MPWREP is a powerful and versatile linear voltage regulator designed specifically for use in integrated power line monitors. It features a number of features and specifications to suit a wide range of applications and provides accuracy, stability and protection. The internal 5V regulator and voltage feed forward protection ensures a reliable and efficient output while the transient-load response system and auto-track current foldback circuit provide superior regulation and protection against damage.

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