NJM2863F28-TE1#

Voltage Dropout (Max):	0.18V @ 60mA
Supplier Device Package:	SOT-23-5 (MTP5)
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Temperature, Short Circuit
Control Features:	Enable
PSRR:	75dB (1kHz)
Current - Quiescent (Iq):	180µA
Current - Output:	100mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.8V
Voltage - Input (Max):	14V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The NJM2863F28-TE1# is a 3-terminal adjustable linear voltage regulator specifically designed for low voltage applications such as hard disk drivers, notebook computers, mobile phones and other portable devices. Its low drop out voltage and its protection circuitry make it an ideal choice for both low and high current applications.

Features and Benefits

The NJM2863F28-TE1# voltage regulator offers a wide range of features and benefits, including: - Output Voltage Adjustable over a Wide Range. It can be adjusted between 1.2V and 28V (the input voltage must exceed the output voltage by at least 2V).- High Accuracy Output Voltage. The regulator offers an output voltage tolerances of ±2%, making it ideal for applications requiring high accuracy.- Low Dropout Voltage of 0.3V (Typical). This ensures that the output voltage remains within the regulated range even when the input voltage drops below the desired setpoint.- Low RDS(ON) Resistance. This feature offers excellent efficiency, allowing for more power to be delivered with less heat dissipation.- Over Voltage and Over Current Protection. The regulator is equipped with over voltage protection (OVP) and over current protection (OCP) to protect against excessive current or voltage use.- Thermal Shutdown Protection Circuit. This feature provides additional protection against temperature extremes.

Applications

The NJM2863F28-TE1# linear voltage regulator has a wide range of applications, including: - Hard Disk Drives: where it can be used to provide a stable voltage to the motor and other components - Notebook Computers and Mobile Devices: the regulator can be used to provide a stable voltage to the processor, RAM, and other components - Automotive and Industrial Applications: the regulator provides a stable voltage for controlling actuators, motors, relays, and other components - Other Portable Devices: the regulator can be used to stabilize the input voltage of small consumer electronics such as digital cameras, MP3 players, and other handheld devices

Working Principle

The NJM2863F28-TE1# linear voltage regulator works on the principle of controlling the voltage across the output terminals by regulating the voltage drop across a pass transistor. When the output voltage is lower than the intended value, the pass transistor turns on, allowing current to flow between the input and output terminals, and regulating the output voltage. When the output voltage is higher than the intended value, the pass transistor turns off, stopping current from flowing between the input and output terminals and controlling the output voltage.

Conclusion

The NJM2863F28-TE1# is an ideal choice for low voltage applications due to its low dropout voltage, high accuracy, protection circuitry and low RDS(ON) resistance. It is designed to provide a stable voltage in a wide range of applications, from hard disk drives to handheld devices, automotive and industrial systems. The working principle of the regulator is based on controlling the voltage across the output terminals by regulating the voltage drop across a pass transistor.

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