S-1142D30I-E6T1U

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The S-1142D30I-E6T1U is a linear voltage regulator, part of a family of devices applying power management integrated circuit technology. It is designed to provide a regulated voltage output, used to control and protect other devices. Linear voltage regulators have been used in a variety of applications: adjustable DC power supply, battery charging, and in nearly every digital electronics application. This article will explore the applications and working principles of the S-1142D30I-E6T1U voltage regulator.

Features of the S-1142D30I-E6T1U Linear Voltage Regulator

The S-1142D30I-E6T1U Voltage Regulator is designed for systems operating in the range of 2.7V to 5.5V. It provides a guaranteed output current of 30mA at a 3.3V output. It is also housed in a small 8-pin package for easy integration into space-limited applications. In addition, the S-1142D30I-E6T1U also provides a wide range of features which make it suitable for a variety of applications:

• Accurate output voltage set with only a single resistor.
• High power supply rejection ratio (PSRR) of 80dB.
• Low noise of 10μVrms.
• High output voltage accuracy of ±1%.
• Wide operating temperature range of -40°C to 125°C.
• Low dropout voltage of 150mV (Vout=3.3V).
• High load and line regulation.
• Under-voltage lockout (UVLO) protection.
• Short-circuit and over-temperature protection.
• 100% low-temperature operation tested.

Application Field of S-1142D30I-E6T1U Voltage Regulator

Due to its wide range of features, the S-1142D30I-E6T1U voltage regulator can be used in a variety of applications. It is commonly used in industrial, automotive, and consumer electronics. Here are some of the examples of applications where it is suitable:

• Consumer electronics devices such as digital cameras, smartphones, and tablets.
• Industrial process control systems.
• Automotive ECUs and microcontrollers.
• Automotive lighting devices.
• Military applications.
• High speed digital and analog circuits.
• Battery charging circuits.
• DC/DC converters.

Working Principle of S-1142D30I-E6T1U Voltage Regulator

The S-1142D30I-E6T1U linear voltage regulator works on the principle of feedback control. It monitors the input voltage and adjusts the output voltage accordingly to maintain a constant output voltage. It has an internal error amplifier which senses the output voltage and compares it to a reference voltage. If the output voltage deviates from the reference voltage, the error amplifier sends a signal to the regulation circuit to make the necessary adjustments.

The S-1142D30I-E6T1U voltage regulator further has a power enable/disable pin which allows it to be disabled to reduce power consumption when the device is not in use. In addition, it also has an under-voltage lockout (UVLO) feature which prevents operation below the specified voltage threshold.

In conclusion, the S-1142D30I-E6T1U linear voltage regulator is a versatile device which can be used in a variety of applications. It provides a wide range of features, such as high power supply rejection, low noise, wide operating temperature range, and overvoltage/overcurrent protections. The working principle of this device can be summarized as feedback control, where the output voltage is monitored and adjusted accordingly to maintain the desired level.

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