S-13R1A21-I4T1U3

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The S-13R1A21-I4T1U3 Linear Voltage Regulator is a PMIC (Power Management IC) that provides a wide range of applications and benefits. The device is suitable for a multitude of switching power supply and battery powered applications, offering a cost-effective solution for performance, reliability and ease of use.

Overview

The S-13R1A21-I4T1U3 is a high voltage Linear Voltage Regulator that provides a wide output voltage range from 3V to 133V. It has an adjustable input voltage range from 4.5V to 36V. Output current is adjustable up to 1.5A. The device has a standby current of 6 mA and a quiescent current of 5 mA. It features over-current and short-circuit protection, thermal protection and advanced current-limiting circuitry.

The S-13R1A21-I4T1U3 also includes an internal 0.8V reference, an adjustable over-temperature detector, as well as over-voltage and over-current shutoff switches. The device is made in a compact and cost-effective TO-220 package and offers a RoHS compliant solution.

Application Fields

The S-13R1A21-I4T1U3 can be used in many areas of application, including automotive and industrial systems, home appliances, telecommunications, networking, computing and consumer electronics. It can be used for DC/DC converters and point-of-load converters, as well as for battery powered applications, for instance for power management. In addition, it can be used for LED drivers, buck and boost converters, and in general, with any application that requires high voltage linear regulation in order to provide stable and reliable voltage sourcing.

Working Principle

The S-13R1A21-I4T1U3 works on the simple principle of linear regulation. It is a linear regulator that uses a reference voltage to control the output voltage and maintain a constant output voltage. It works like a variable resistor, in a way that the input voltage is compared to the reference voltage and the difference (error) is used to adjust the output voltage. This is regulated by the feedback loop, which controls how the output voltage is adjusted depending on the error. The output voltage is adjusted by the current through the control transistor, which, in turn, is dependent on the difference between the input voltage and the reference voltage.

The device also employs an internal 0.8V reference voltage, as well as an adjustable over-temperature detector, to ensure accurate output voltage and optimal protection from over-temperature conditions. Furthermore, the device features over-current and short-circuit protection, advanced current-limiting circuitry, and over-voltage and over-current shutoff switches. These features allow the device to be used in a multitude of high current applications.

Conclusion

The S-13R1A21-I4T1U3 Linear Voltage Regulator is a cost-effective, high voltage linear device designed for a variety of demanding applications. It offers wide input and output voltage ranges, adjustable output current, low standby and quiescent current, as well as a variety of features such as over-current and short-circuit protection, advanced current-limiting circuitry, and over-voltage and over-current shutoff switches. The device is suitable for a multitude of switching power supply and battery powered applications, offering a cost-effective solution for performance, reliability and ease of use.

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