S-1142B80I-E6T1U Integrated Circuits (ICs)

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The S-1142B80I-E6T1U is a voltage linear regulator that belongs to the PMIC - Voltage Regulators - Linear category. This robust regulator is designed to provide a precise output voltage with extended temperature range and exceptional power handling capability. The device, which is housed in a SOT-226 package, offers a wide input voltage range and precise output voltage adjustment and is designed to provide a constant output current in the range of 2A.

Overview

The S-1142B80I-E6T1U offers a stable output voltage from input voltages ranging from 2.7V to 15V, and output voltages from 0.6V to 15V. The output voltage can be adjusted from a single external resistor. The device is ideal for applications that require a wide input voltage and tight output voltage regulation, such as those found in automotive, industrial and consumer systems. The device offers excellent transient performance, making it suitable for high-speed applications. The S-1142B80I-E6T1U offers a wide operating temperature range, from –40°C to 125°C, making it suitable for environmental applications.

Features and Benefits

The S-1142B80I-E6T1U provides a wide range of features and benefits, including:

• Wide 4.5V-15V input supply range
• Stable output voltage over temperature
• Output voltage adjustable from 0.6V to 15V
• Regulated constant output current over the entire input range
• Short-circuit protection
• High power handling capability
• High reliability and long life
• High efficiency

Applications

The S-1142B80I-E6T1U can be used in a variety of applications, including:

• Automotive systems
• Industrial systems
• Consumer electronics
• Portable devices
• Medical systems
• Power supplies

Working Principle

The S-1142B80I-E6T1U is a linear voltage regulator which uses its pass transistor to regulate the output voltage. The output voltage is determined by a resistive divider which is connected to the error amplifier. When the output voltage drops, the voltage at the error amplifier is lowered and its output is increased, increasing the current to the pass transistor and raising the output voltage. Conversely, when the output voltage is too high, the voltage at the error amplifier is increased, lowering the current to the pass transistor and decreasing the output voltage. This feedback loop regulates the output voltage to the desired level.

The S-1142B80I-E6T1U also offers short-circuit protection. When an overload condition occurs, the current rises sharply and is detected by the current limit circuit. This circuit will then reduce the gate drive to the pass transistor and limit the current to a safe level. This prevents excessive power dissipation and protects the device from damage.

Conclusion

The S-1142B80I-E6T1U linear voltage regulator is a robust device designed for automotive, industrial, and consumer applications. It provides a wide input voltage range and precise output voltage adjustment, as well as a wide operating temperature range, making it suitable for environmental applications. It offers excellent performance, making it suitable for high-speed applications. The device also offers short-circuit protection, high power handling capability, and high reliability, making it an ideal voltage regulator for a variety of applications.

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