NJU7201L2-55

Voltage Dropout (Max):	0.6V @ 40mA
Supplier Device Package:	TO-92-3
Package / Case:	TO-226-3, TO-92-3 (TO-226AA)
Mounting Type:	Through Hole
Operating Temperature:	-25°C ~ 75°C
Protection Features:	--
Control Features:	--
PSRR:	--
Current - Output:	100mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5.5V
Voltage - Input (Max):	12V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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NJU7201L2-55 Application Field and Working Principle

Introduction

NJU7201L2-55 is a voltage regulator specifically designed for analogue solutions that require high accuracy and excellent performance. It belongs to a family of linear voltage regulators produced by New Japan Radio Co., Ltd. This voltage regulator is commonly known as a linear voltage regulator (LVR). LVRs provide excellent features such as low ripple noise, fast settling time, and high accuracy. This makes them ideal for applications where precise and stable power supply is critical. In addition to these features, the NJU7201L2-55 also has excellent temperature coefficients, a wide supply voltage range, and wide output voltage range. The NJU7201L2-55 is suitable for both microcontrollers (MCUs) and digital signal processing (DSP) applications.

Functional Overview

The NJU7201L2-55 is a single output LVR that provides a stable supply voltage from a 4.5V to 24V input. The voltage regulator is capable of outputting voltages from 1.5V to 10V, with a maximum output current of 600mA. It is designed primarily for powering low-power ICs such as DSPs, embedded systems and regulators that require low noise and minimum ripple.The NJU7201L2-55 is designed to offer efficient, low-noise operation with a robust package. Its input is protected against overvoltage conditions, while its output voltage is protected against over temperature conditions. The LVR also provides an open circuit protection safety rating of 4000V. In addition, it provides a low ESR output capacitor to ensure stability and low noise.The NJU7201L2-55 is designed with an exclusive supply current control circuit, which minimizes input voltage drop and ensures efficient operation. It also offers a line regulation range of only 0.4mV per unit load variation and a load regulation range of 0.35mV per unit load variation.

Application Field

The NJU7201L2-55 is a versatile LVR that can meet the needs of a wide range of applications. It is ideal for providing stable and precise analog signals for DSPs, MCUs and regulators that require low ripple and fast settling time. It is also suitable for applications with high-efficiency requirements such as digital TV, radio and satellite receivers, video encoders, and video decoders. In addition, the NJU7201L2-55 is suitable for a range of other applications such as battery-powered systems, automotive, industrial and consumer applications.

Working Principle

The NJU7201L2-55 operates by controlling the amount of current that flows through its internal transistors. The amount of current is determined by the output voltage of the voltage regulator and is controlled by the Feedback Pin, which consists of an internal voltage reference and an error amplifier comparing the input voltage and the output voltage. This type of regulation is known as “linear regulation”.The Feedback Pin compares the voltage output of the voltage regulator to the internal reference, and if there is a difference, it will adjust the output current accordingly. This will cause the output voltage to change to match the internal reference. The amount of current that is being adjusted is set by the output voltage of the voltage regulator and the load current.

Conclusion

The NJU7201L2-55 is a linear voltage regulator that provides excellent features such as low ripple noise and fast settling time. It is suitable for a wide range of applications including low-power ICs and digital signal processing applications. It is designed with an exclusive supply current control circuit and provides an open circuit protection safety rating of 4000V. This can help to ensure efficient and reliable operation in high-efficiency applications such as digital TV receivers and video encoders.

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