LT3021ES8-1.2#PBF

Current - Output:	500mA
Base Part Number:	LT3021
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Control Features:	Enable
PSRR:	60dB (120Hz)
Current - Supply (Max):	10mA
Current - Quiescent (Iq):	250µA
Series:	--
Voltage Dropout (Max):	0.285V @ 500mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.2V
Voltage - Input (Max):	10V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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Introduction to LT3021ES8-1.2#PBF

LT3021ES8-1.2#PBF is a linear voltage regulator which belongs to the family of PMIC (Power Management Integrated Circuit). The product is designed to provide stable output voltage, normally it is used to provide the many supply voltages that are required in the most advanced system applications.

Application Field of LT3021ES8-1.2#PBF

LT3021ES8-1.2#PBF is widely used in a variety of applications, from ITE (Information Technology Equipment) to medical, industrial and automotive. Examples of application includes sophisticated communications systems, high-end CPU and FPGA power supply, notebooks, color displays and LCDs, automotive audio systems and LCD panels. The device is also suitable for high power integrated circuits and devices, such as gigabit Ethernet transceivers, GPU VR controllers, CPUs, parallel processing systems and more. In addition, LT3021ES8-1.2#PBF is suitable for a wide range of system power supply circuits, such as point-of-load converters, hot plug power supplies, and multiple output buck/boost/inverting converters.

Working Principle of LT3021ES8-1.2#PBF

The working principle of the LT3021ES8-1.2#PBF is relatively simple. The device takes an input voltage, which could be an unregulated voltage, and outputs a regulated voltage. There are two main components to the device- diode and transistor. They work together to produce the output voltage. The diode is set at a reference voltage level and regulates the input voltage. When the input voltage is below the reference voltage, the diode turns on and the transistor is also turned on, providing a path for the current to flow. The transistor works as a variable factor by controlling the current flow that goes through the diode. This allows the device to adjust the output voltage according to the input. The LT3021ES8-1.2#PBF also includes two on-chip control circuits- feedback and current limit circuit. The feedback circuit compares the output voltage with the programmed resistor to see whether or not the output voltage is correct. The current limit circuit ensures that the output current is within the prescribed limit.

Conclusion

In conclusion, the LT3021ES8-1.2#PBF is a PMIC linear voltage regulator which is widely used for a variety of applications. Its working principle is relatively simple. The device takes an input voltage, regulates it and outputs a regulated voltage. The two main components of the device- diode and transistor- work together to produce the output voltage and two on-chip control circuits- feedback and current limit circuits- ensure that the output voltage is correct and the output current is within the prescribed limit.

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