S-13R1C40-I4T1U3

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The S-13R1C40-I4T1U3 is a linear voltage regulator, a type of power management integrated circuit (PMIC) designed to regulate the voltage of electrical devices. It is a 3-pin, 1A output voltage adjustable regulator and designed for applications including portable communications, digital consumer electronics, LED lighting, and automotive audio equipment. The device uses a negative voltage reference, a low impedance voltage divider, and an open-drain enable line to provide superior regulation accuracy and response to transient load changes.

Overview

The S-13R1C40-I4T1U3 consists of an integrated circuit, a potentiometer for adjusting the output voltage, and a stabilized power supply circuit. It uses precision voltage reference technology to provide outstanding regulation accuracy of 0.2%. It accepts input voltages from 2.2V to 18V and provides an adjustable output voltage range from 0.8V to 17V. Additionally, the device features an output voltage tracking accuracy of 0.04% over line and load transients and a load regulation of 0.2%.

Features

The device features high efficiency with a low quiescent current of 0.3 to 6.5 mA, depending on the output voltage. It is designed to reduce energy consumption and reduce system power dissipation. The device offers up to 0.3µA of sleep mode current and adjustable soft-start to minimize the inrush current during startup. It also has extremely low noise and fast transient response, ideal for audio and low noise applications. The device provides short-circuit protection and thermal protection to protect it from overloading and overheating.

Application Fields

The S-13R1C40-I4T1U3 is suitable for a wide range of applications, particularly in portable electronics and automotive audio equipment. The device can be used as an adjustable power supply in portable communications, flash LED lighting, and instrumentation. It is also suitable for applications that require precision voltage regulation, such as digital audio and video equipment, GPS navigation systems, wireless communication systems, and medical equipment.

Working Principle

The S-13R1C40-I4T1U3 works by converting input voltages into adjustable output voltages or current. The device consists of a voltage reference circuit, a transistor array, two resistors, and a voltage divider. The voltage reference produces a reference voltage which is used to compare to the output voltage. The transistors then convert the input voltage into an adjustable output voltage. The two resistors provide impedance matching to ensure stable operation. The voltage divider divides the output voltage, allowing the device to accurately adjust the output voltage.

The device also features internal regulators to regulate the voltage and current applied to the transistors and control the output voltage. The device features latch circuitry to prevent the device from overloading at extreme conditions. The device is designed to be robust and reliable, with a thermal shutdown and short circuit protection to protect itself from excessive loading.

Conclusion

The S-13R1C40-I4T1U3 is a linear voltage regulator designed for precision regulation and high performance. It is an ideal solution for applications that require adjustable output voltages, such as portable communications, digital consumer electronics, LED lighting, and automotive audio equipment. The device is highly efficient and offers short-circuit and thermal protection to ensure reliable operation. With its low noise and fast transient response, the potential applications for this device are virtually endless.

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