S-1142D60I-E6T1U

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Linear voltage regulators are the commonly used technology for controlling the voltage level. The S-1142D60I-E6T1U is a low dropout (LDO) linear voltage regulator known for its low quiescent current, stability, and dropout voltage. It is a positive voltage regulator delivering up to 60V with a 0.9V maximum dropout voltage, a typical quiescent current of 3uA, and a 2.5A maximum output current. This makes it suitable for a wide range of applications.

Applications

The S-1142D60I-E6T1U can be used to regulate output voltages in devices ranging from computers, gaming consoles and peripherals, to appliances, power tools, and other devices with higher-current outputs. With its maximum output current of 2.5A and its low dropout voltage, it can be used as a replacement for bulky, inefficient voltage-dependent transformers, or for applications where it is critical to maintain a stable, precise output voltage. Additionally, its low quiescent current makes it an energy-efficient choice for battery-operated and portable devices.

Working Principle

This linear voltage regulator works on the principle of feedback control and voltage regulation. It uses a shunt-mode feedback configuration, which senses the output voltage and adjusts the base current of the pass transistor to a level that is necessary to keep the output voltage slightly above the reference voltage level. This loop produces a higher output voltage than the reference voltage and ensures that the output voltage is maintained at the required level.

The S-1142D60I-E6T1U has an on-board voltage divider which is used to sense the output voltage. When the output voltage is different from the reference voltage, the error amplifier senses this difference, amplifies it, and generates the necessary current to adjust the base current of the pass transistor. This ensures that the output voltage is maintained at the reference voltage level.

In addition, the output voltage stability is further enhanced by the use of low-impedance, high-bandwidth feedforward compensation circuitry. This compensates for any frequency-dependent variations in the output voltage, and helps reduce any undesirable parasitic oscillations. Overall, this makes the S-1142D60I-E6T1U suitable for applications that require extended bandwidth and low-output capacitance.

Conclusion

The S-1142D60I-E6T1U low dropout linear voltage regulator is an efficient and cost-effective solution for many applications requiring a stable, precise output voltage. Its wide range of features such as low quiescent current, low dropout voltage, high output current, and excellent output stability make it ideally suited for a wide range of applications including computers, gaming consoles, appliances, and portable batteries.

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