S-1142A37I-E6T1U

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S-1142A37I-E6T1U

The S-1142A37I-E6T1U is a high power, ultra-low drop, Monolithic Linear Regulator with wide input voltage range and low noise output. It is designed to offer efficient regulation of supply voltages in a range of applications with input voltages up to 20V and output currents up to 500mA. The S-1142A37I-E6T1U can offer improved performance, cost saving, and reliability when compared to traditional linear adjustable regulators.

Application Field

The S-1142A37I-E6T1U can be used in a wide range of applications including, but not limited to, consumer electronics, instrumentation, industrial, automotive, and wireless applications. It can be used for providing a stable power supply to microcontrollers, ASICs, DSPs, FPGAs, and other digital circuitry. It can also be used to power sensors and motor control systems.

The device features enhanced output voltage accuracy, line and load regulation and temperature compensation. It is suitable for both high and low dropout applications. This is due to its High Power Discharge Path (HPDP) mechanism, which allows the device to efficiently supply power in low dropout operation.

Working Principle

The S-1142A37I-E6T1U is a monolithic IC incorporating a voltage regulator with active protection circuitry. It is designed to efficiently drive a fixed output voltage (V out ) from an input voltage (V in ) at currents up to 500mA. It is based on the voltage regulator principle, in which the output voltage is regulated by controlling the input-to-output current flow. The S-1142A37I-E6T1U device operates so that the output is maintained at a regulated voltage, regardless of changes in input voltage or load current.

The regulators’ core functions are divided between two elements, the Error Amplifier (EA) and the Pass Transistor (PT). The EA monitors the output voltage and compares it to a reference voltage. It then adjusts the gate voltage of the PT in order to regulate the output voltage. The PT is responsible for controlling the power flow. It is connected in series with the input voltage, and its resistance is used to ‘drop’ the voltage to the desired output level.

The device also incorporates active protection circuits to protect against overload, overvoltage and over-temperature conditions. The thermal shutdown circuit prevents the device from sustaining damage during prolonged overload conditions. The overcurrent protection circuitry limits the output current to safe levels. The overvoltage protection circuit prevents the output voltage from exceeding the regulatory safety limits.

The S-1142A37I-E6T1U is designed to offer efficient, accurate and reliable power supply regulation in a wide range of applications. With its excellent performance and cost savings, it is an ideal choice for a variety of applications.

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