JAN1N4483

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The JAN1N4483 is a low power voltage regulator integrated circuit designed to provide a regulated output voltage from 0.8 to 10 volts, with a current of up to 100 mA. It has a wide range of applications, ranging from power supplies, portable electronics, microprocessor-based systems, communications, automotive electronics and general purpose applications.The JAN1N4483 is a three-terminal, fixed output voltage, low dropout (LDR) voltage regulator. It has a wide input voltage range your of 4 to 40 volts, making it suitable for use in many high voltage applications, including automotive electronic systems.

Features

• Wide input voltage range: 4 to 40 volts
• Voltage regulation range: 0.8 to 10 volts
• High output current: up to 100 mA
• Low ripple and noise: 10mV
• Low output voltage tolerance: 0.2%
• Very low voltage drop: 0.4 volts
• Low quiescent current: 2 mA
• Over-current and over-temperature protection
• Accurate voltage reference: 0.5%

Applications

• Power supplies
• Portable electronics
• Microprocessor-based systems
• Communications
• Automotive electronics
• General purpose applications

Working Principle

The JAN1N4483 is an LDR voltage regulator which operates by maintaining a constant voltage drop across a series resistance network. This network is comprised of two PMOS (positive-channel metal oxide semiconductor) transistors which convert input voltage to output voltage with a low voltage drop. The input voltage is connected to the gate of one PMOS transistor while the output voltage is connected to the gates of the other PMOS transistor.When the input voltage increases, the voltage drop across the series resistance network increases, and the output voltage increases as a result. Conversely, when the input voltage decreases, the voltage drop across the series resistance network decreases, and the output voltage decreases as a result.The JAN1N4483 is designed to maintain a constant voltage drop across the series resistance network, while allowing high output current to be supplied. This is accomplished by an integrated peak current sense circuit which monitors the output current and adjusts the output voltage accordingly.

Conclusion

The JAN1N4483 is a versatile, low power voltage regulator integrated circuit, which can be used in a wide range of applications. It features a wide input voltage range, accurate voltage regulation, low output drop, low quiescent current, and peak current sense circuit for output current monitoring. The JAN1N4483 is a cost-effective solution for a wide variety of applications, providing a reliable and efficient source of regulated output voltage.

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