S-817B50AY-B2-U

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Linear voltage regulators are DC to DC devices which minimize output ripple by controlling the undesired rise or fall in an output line known as “load regulation.” Their application a field ranges from consumer electronic devices to military grade products. This article examines the S-817B50AY-B2-U linear voltage regulator and provides an overview of its applications and how it works in order to gain a better understanding of its function.

S-817B50AY-B2-U Overview

The S-817B50AY-B2-U is a CMOS voltage regulator which operates on a wide input voltage range of 2.5 to 5.5 VDC and is capable of delivering up to 0.5A current. It features a voltage enhancement mode operation and low power dissipation, meaning it does not require a heat sink. The regulator also has a response time of 1µs with 50 mV ripple rejection and a working temperature range of -40°C to +125°C.

Applications

The most common application for the S-817B50AY-B2-U is in portable electronic devices. It can be used in smartphones, tablets, and other personal digital assistants. The device is specifically designed to handle small, integrated applications where low power consumption is critical. It can also be used in other industrial and automotive applications which require a powerful, reliable and cost effective linear regulator.

Working Principle

The S-817B50AY-B2-U operates on a linear regulator principle. The regulator takes an input voltage and then adjust the output to a desired level, depending on the load requirements. The regulator works by comparing the input voltage and the feedback voltage of the output. Based on these values, it will then regulate the output voltage accordingly.To protect the output from over-voltage or over-current, the S-817B50AY-B2-U is equipped with a PSI Shutdown (PSHDN) pin. When this pin receives a high signal level, the SOT-23-5 package will shutdown, resulting in a high impedance output voltage.To ensure long-term reliability and stability, the S-817B50AY-B2-U also has ESD protection on the output pin and is also pre-biased at power-on. This feature will allow the regulator to stay in regulation, even when the load time of the device is prolonged.

Conclusion

The S-817B50AY-B2-U is an efficient linear voltage regulator that is capable of providing 0.5A of current with a wide input voltage range. It is designed for applications where low power consumption and reliability are important, such as in portable electronic devices and automotive applications. The device works on the principle of comparing the input voltage to the feedback voltage of the output, which then adjusts the output voltage accordingly. It also has protection features such as ESD protection and PSI Shutdown to ensure long term stability and reliability.

The specific data is subject to PDF, and the above content is for reference