LP2981AIM5-2.5/NOPB

Current - Output:	100mA
Base Part Number:	LP2981
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Short Circuit
Control Features:	Enable
PSRR:	63dB (1kHz)
Current - Supply (Max):	1.7mA
Current - Quiescent (Iq):	95µA
Series:	--
Voltage Dropout (Max):	0.37V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.5V
Voltage - Input (Max):	16V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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LP2981AIM5-2.5/NOPB Application Field and Working Principle

Power management integrated circuits (PMICs) have become ubiquitous in today\'s electronics technology. The LP2981AIM5-2.5/NOPB is a voltage regulator by Texas Instruments, and is one type of PMIC. It belongs to the Linear Voltage Regulators category, and is used for battery management, as well as providing a stable voltage supply for other integrated circuits or microcontrollers.

Features

The LP2981AIM5-2.5/NOPB has several noteworthy features that make it an attractive choice for integrated circuits requiring a regulated voltage supply. It has a very high accuracy of 0.4% as well as a very low quiescent current of 1.6 µA. It also has an adjustable 100 mA voltage regulation current and a fast transient response which helps to maintain a constant output voltage in the face of changing input voltages and load currents.

Applications

The LP2981AIM5-2.5/NOPB is a versatile voltage regulator that is suitable for use in many different integrated circuits and applications. It is designed to power small microcontrollers, automotive systems and battery powered equipment. The low quiescent current also makes it suitable for use in hand-held and portable devices as it reduces power consumption and prolongs battery life.

Working Principle

The LP2981AIM5-2.5/NOPB is an adjustable linear voltage regulator. It works on the principle of controlling the output voltage by controlling the voltage at the base of an internal PNP transistor. The PNP transistor is connected in series with a resistor to the output and the base of the transistor is fed with the control voltage. A feedback loop is used to ensure that the output voltage is regulated and remains constant despite changes in input voltage or load current.

Conclusion

The LP2981AIM5-2.5/NOPB is a versatile linear voltage regulator with a high accuracy and low quiescent current. It is suitable for a wide range of applications, including portable devices and battery-powered equipment, and it is capable of maintaining a stable output voltage even in the face of changing input voltages and load currents.

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