TPS74201EVM-118

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Evaluation boards come in a variety of forms and serve a variety of roles, from troubleshooting existing devices to prototyping new designs. One of the most common types of evaluation boards are linear voltage regulators, designed to provide stable power to different components while fending off voltage irregularities and fluctuations. The TPS74201EVM-118 is one such board, designed to provide a high-precision, low-dropout voltage regulator. This article will discuss the application field and working principle of the TPS74201EVM-118.

Application Field

The TPS74201EVM-118 is designed for a variety of applications that need an especially precise and reliable voltage source. It is best suited for ultra-low-dropout (ULD) applications, such as those involving highly sensitive components that require very low input-output voltage differences. It can also be used for point-of-load applications, where complex monitoring and control of the output voltage is needed. In addition, the board is designed to provide power in an ultra-low power (ULP) environment, making it suitable for battery-operated and other highly power-sensitive applications.

Working Principle

The TPS74201EVM-118 is based on a high-performance voltage regulator, the TPS74201. The regulator is a monolithic integrated circuit (IC) that consists of an operational amplifier, a voltage reference, a voltage divider, and a low-dropout (LDO) error amplifier. It is specifically designed to provide a low-noise, high-accuracy voltage source, even when the input voltage is highly variable. The output voltage range can be adjusted from 1.2V to 5.5V via an onboard potentiometer.

The LDO architecture ensures a minimum voltage differential between the input and output. This allows the IC to work even with very low input voltages and ensure a high precision output. The board is further equipped with a voltage supervisor that helps prevent a short circuit at the output. The voltage supervisor adds extra protection against undesired high current draw and helps the device maintain a high level of precision with little to no external interference.

Conclusion

The TPS74201EVM-118 is an example of a high-performance, low-dropout voltage regulator. It is specially designed for ULD applications, point-of-load applications, and ultra-low power applications. Its precision is ensured by the monolithic IC and the built-in voltage supervisor. The board is adjustable via an onboard potentiometer, allowing for a wide range of output voltage settings.

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