MAX1935ETA+T

MAX1935ETA+T Application Field and Working Principle

The MAX1935ETA+T voltage regulator from Maxim Integrated is a high-efficiency, low-noise linear regulator, offering up to 95% efficiency when using power supplies up to 28V. It supports input voltage up to 39V and is able to regulate output voltage down to 1.2V. The internal P-channel MOSFETs are able to deliver up to 1.5A of current. It is ideal for applications where space and efficiency are key, such as set-top box power supplies.

The MAX1935ETA+T voltage regulator has two main components: the error amplifier and the pass stages. The error amplifier is responsible for comparing the input voltage and output voltage signals, and producing an error voltage by subtracting the two. This error voltage is then used by the pass stages to adjust the current output, ultimately regulating the output voltage. The output voltage is directly proportional to the comparison of the input and output voltages, meaning that a small change in the output voltage will cause a large change in the current output. This ensures that the output voltage is as stable as possible. The pass stages then make use of this error voltage in order to regulate the output.

The MAX1935ETA+T voltage regulator has several features that make it well-suited to the applications previously mentioned. Firstly, it is able to maintain a very low output noise, making it suitable for sensitive digital circuitry. Secondly, the regulator is able to provide high-efficiency performance, reducing power consumption and improving thermal performance. Thirdly, the MAX1935ETA+T has an on-chip thermal protection circuit that will shut down the device in the event of an over temperature condition. This prevents the device from being damaged by a prolonged high temperature condition. Finally, the MAX1935ETA+T voltage regulator comes with an adjustable current limit and an adjustable soft-start feature, allowing for further customization of the power supply.

In conclusion, the MAX1935ETA+T voltage regulator from Maxim Integrated is a highly efficient and reliable linear regulator, ideal for a range of applications such as set-top box power supplies. It has a wide input voltage range, up to 39V, and is able to maintain a low output noise, ensuring that it is suitable for a range of sensitive digital circuitry. In addition, the regulator has thermal protection, adjustable current limit, and adjustable soft-start features, allowing for further customization and reliability.