NJU7211L50

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NJU7211L50 is a series of low drop-out linear regulator developed by New Japan Radio Company. It has a wide variety of applications and working principles.

Application Field

NJU7211L50 is a high-speed, high-accuracy, low-dropout linear regulator that can be used in various fields.

• Consumer electronic products: audio, digital cameras, DVD players, electronic watches, game machines.
• Portable devices: mobile phones, PDAs, notebook computers
• Ultrasound and imaging systems.
• Medical instruments.

Working Principle

NJU7211L50 consists of a P-channel MOSFET as the main element and a reference voltage source. Its output current is determined by the voltage difference between the output terminal and the reference voltage. The P-channel MOSFET is used as the power transistor, which reduces the dropout voltage and improves energy efficiency.

The feedback of the NJU7211L50 linear regulator is generated by the reference voltage source, which provides the necessary voltage level control. The reference voltage is regulated by an error amplifier connected to a negative feedback loop, which allows the linear regulator to self-regulate and maintain a fixed output voltage.

The NJU7211L50 also includes a slew-rate limiter, which reduces the amount of time required for the output voltage to stabilize after a change in load or line voltage. It helps protect the system from excessive voltage spikes.

NJU7211L50 is a highly efficient linear regulator, with a maximum efficiency of up to 97%. It is also highly reliable, with an MTTF (Mean Time To Failure) of up to 1 million hours.

Conclusion

NJU7211L50 is a highly efficient and reliable low drop-out linear regulator designed for a wide variety of applications. It has a wide operating range, low dropout voltage, and high efficiency. It is capable of self-regulating and limiting the slew rate of voltage changes, providing protection against voltage spikes.

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