TPS79601DRBEVM

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The Texas Instruments TPS79601DRBEVM is an evaluation board designed to learn about how linear voltage regulators and buck regulator application fields and their working principles. The board is shipped assembled and tested. Features include a very low quiescent current, efficient transient response time, over-voltage and reverse protection, and thermal shutdown. This device is very useful in many different application fields, including power management, automotive and motor control applications, industrial systems control, and multi-supply systems.

Functionality

TPS79601DRBEVM is a voltage regulator evaluation board based on the TPS796x linear voltage regulator series. It is a highly efficient, low-dropout (LDO) voltage regulator able to supply up to 1A of output current. The device has separate enable, overvoltage, and reverse-bias protection functions for added safety. Additionally, it features current-limit protection and thermal shutdown for added protection.

Design

The TPS79601DRBEVM is designed to be used in conjunction with the TPS7A00 adjustable LDO evaluation module. Its components, including LDO output voltage regulator, P-channel MOSFET, output capacitor and other power components, are chosen based on efficiency and size requirements. The board is designed to minimize power dissipation of the components while still delivering efficient and reliable output voltage regulation. The board design also includes components allowing the user to add load capacity to the board.

Applications

TPS79601DRBEVM can be used to evaluate a variety of applications, such as low-dropout voltage regulators, buck regulator applications, automotive and motor control applications, industrial systems control and multi-supply systems. It is suitable for use in applications requiring low quiescent current and high efficiency. Because of its over-voltage protection feature, it is also suitable for use in applications in which the system must be protected from higher voltages than the rated voltage of the components.

Working Principle

The working principle of the TPS79601DRBEVM is based upon the operation of the TPS796x series of linear voltage regulators. When a voltage greater than the voltage set at the power input is applied, the device will activate its over-voltage protection feature. This will prevent further application of voltage to the power input, thus preventing damage to the components connected to the board. The device also features a MOSFET pass-through circuit that allows the voltage regulator to operate as a low-dropout regulator. When the output voltage drops too low, the FET will activate, allowing the device to safely regulate the output voltage. Additionally, current-limit protection and thermal shutdown are features of the device, allowing it to protect itself should an overload occur or the temperature exceed the predetermined limits.

Conclusion

The Texas Instruments TPS79601DRBEVM is an innovative evaluation board designed to help users understand the workings and application fields of linear voltage regulators and buck regulator applications. The board is shipped assembled with all the components needed to evaluate a variety of applications, and the device includes safety features to prevent damage to the system should it be subjected to higher voltages or overload conditions.

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