LT3089EDF#PBF

Current - Output:	800mA
Base Part Number:	LT3089
Supplier Device Package:	12-DFN (4x4)
Package / Case:	12-WFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity, Short Circuit
Control Features:	Current Limit
PSRR:	90dB ~ 20dB (120Hz ~ 1MHz)
Current - Supply (Max):	3mA
Current - Quiescent (Iq):	50.5µA
Series:	--
Voltage Dropout (Max):	1.65V @ 800mA
Voltage - Output (Max):	34.5V
Voltage - Output (Min/Fixed):	0V
Voltage - Input (Max):	36V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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Introduction to LT3089EDF#PBF

LT3089EDF#PBF is a linear voltage regulator manufactured by Linear Technology, Inc. It is a low-dropout regulator with a low-noise, precision output. It features a wide input voltage range and excellent thermal stability. It is also extremely easy to use and has a wide operating temperature range. As a result, the LT3089EDF#PBF is an ideal choice for applications requiring high performance, exacting power regulation, and a robust design.

LT3089EDF#PBF Application Field

The LT3089EDF#PBF is suitable for a range of applications in both industrial and automotive electronics, including: * Battery-powered systems* Computer motherboards and memory cards* Automotive electronics* Electronic instrumentation* Medical equipment* Portable audio equipment* Precision control circuitryThis voltage regulator is also used in a variety of telecommunication and automotive applications. It can be used as a power source for GPS receivers and other sensors, or as a power source for low-power RF transmitters. The LT3089EDF#PBF is also often used in motor vehicle electronics. Its wide range of features makes it ideal for providing exacting power regulation in automotive systems, including ECUs and sensors.

Working Principle of LT3089EDF#PBF

The LT3089EDF#PBF is a low-dropout linear voltage regulator. Its main components are a feedback circuit, an error amplifier, and a voltage reference. The feedback circuit provides the current feedback to the error amplifier, which drives the output stage. The voltage reference sets the output voltage and maintains the desired voltage accuracy. The feedback and error amplifier circuit produces an output error signal, which is used to adjust the output voltage in the output stage. If the output voltage varies from the set voltage, the error amplifier will drive the output voltage up or down accordingly. This adjustment is done with very low noise, ensuring precise voltage regulation. The LT3089EDF#PBF also features a current sensing circuit. This circuit senses the load current of the regulator and provides a signal to the error amplifier to ensure the regulator does not exceed its maximum operating current. This helps to further improve the accuracy of the output voltage and protect the regulator from overloading.

Conclusion

The LT3089EDF#PBF is a linear voltage regulator designed to provide precise, low-noise output regulation across a wide input voltage range. Its features make it suitable for a variety of applications, including industrial and automotive electronics. Its low-dropout architecture and current sensing circuit ensure an accurate and stable output voltage and protect the regulator from overloading.

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