LP2985A-28DBVT

Current - Output:	150mA
Base Part Number:	LP2985A-28
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:	45dB (1kHz)
Current - Supply (Max):	2.5mA
Current - Quiescent (Iq):	95µA
Series:	--
Voltage Dropout (Max):	0.58V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.8V
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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LP2985A-28DBVT Application Field and Working Principle

The LP2985A-28DBVT is a low-dropout, low-noise, high-efficiency linear regulator from Texas Instruments. It is a member of the LP2985 family of ultra-low-power, low-dropout linear voltage regulators. This device features low ground current, low quiescent current, excellent output accuracy, and low input/output voltage deviation in the face of varying temperature and load. The device is designed for battery-powered applications where low voltage and current are needed.The device offers a wide range of applications ranging from consumer, medical, and industrial equipment to telecommunications, handling a wide range of input voltages from 2.9 V to 16 V and delivering two regulated output voltages from 1.2 V to 8 V. The LP2985A-28DBVT supports a wide range of loads and power supply conditions.

Features and Advantages of LP2985A-28DBVT

The LP2985A-28DBVT features a wide range of features, advantages and benefits including an adjustable output voltage and current limit protection, output over-temperature protection, and low quiescent and ground current.Some of the most useful features of this device include the thermal shutdown feature, adjustable voltage and current limit protection, and the fact that it is available in SOT-223 and SOT-23 packages.The device is also optimized for low ground current and high efficiency, making it ideal for battery-powered applications. The device also features a wide operating temperature range (from -40°C to 125°C).

Working Principle of LP2985A-28DBVT

The LP2985A-28DBVT is a linear voltage regulator that regulates the output voltage by comparing the input voltage and output voltage. The device will increase or decrease the output voltage until it reaches the desired level. The output voltage is regulated by a differential amplifier which compares the output and feedback voltage. The device also features current limiting and thermal protection to ensure that the device operates safely and reliably.The device features a low ground current, high-efficiency and low quiescent current in order to save power and extend the battery life of the device. It is designed to regulate the output voltage in situations where the input voltage can fluctuate due to different power supply conditions.

Conclusion

The LP2985A-28DBVT is a low-dropout, low-noise, high-efficiency linear voltage regulator designed for battery-powered applications. It is designed to deliver high accuracy regulated voltage from 1.2 V to 8.0 V with excellent load and line regulation. It has high output accuracy, low quiescent current and low ground current, and is available in SOT-223 and SOT-23 packages. Its low ground current, high-efficiency, and wide range of features such as adjustable current limit and over-temperature protection make it an ideal choice for battery-powered applications.

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