LT1120IS8#TRPBF

Current - Output:	125mA
Base Part Number:	LT1120
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 100°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	--
Current - Supply (Max):	100µA
Current - Quiescent (Iq):	80µA
Series:	--
Voltage Dropout (Max):	0.65V @ 125mA
Voltage - Output (Max):	35.35V
Voltage - Output (Min/Fixed):	2.5V
Voltage - Input (Max):	36V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction of LT1120IS8#TRPBF

LT1120IS8#TRPBF is a low-dropout (LDO) voltage regulator from Linear Technology. It is an ultra low-noise, low-quiescent current regulator with a wide input voltage range and extremely fast response time. It is available in a variety of output current options ranging from 150mA to 600mA, and its wide input voltage range of up to 40V makes it suitable for a variety of applications. The LT1120IS8#TRPBF regulates output voltage over a temperature range of -40°C to +150°C and provides stable operation in the most extreme operating conditions. It also features short-circuit protection, over-temperature protection, and inrush current limiting.

Application Field of LT1120IS8#TRPBF

LT1120IS8#TRPBF is a perfect solution for system voltage regulation in a variety of applications, including computing and networking systems, industrial systems, consumer systems, and power management. It provides clean, low-noise power to microprocessors, DSPs, and other digital and analog electronics.The LT1120IS8#TRPBF is ideal for powering sensitive analog circuitry, as its ultra-low-noise design provides a noise floor well below the industry typical standards. It is also a great choice for multiple output systems, where it can precisely regulate multiple outputs with one part. The wide input voltage range of up to 40V allows the LT1120IS8#TRPBF to be used in high-voltage applications such as automotive and battery-powered systems, making it a versatile and efficient choice for voltage regulation.

Working Principle of LT1120IS8#TRPBF

The working principle of the LT1120IS8#TRPBF is relatively simple. The LDO is a linear power supply, which uses a series of components to regulate the output voltage in a low dropout manner. To regulate the output voltage, a transistor is used to draw current from the input voltage and supply it to the output voltage in two different directions.Firstly, the resistor between the input voltage and the ground is increased, causing the output voltage to decrease. Secondly, a current-source transistor is used to draw current from the input voltage and supply it to the output voltage. This increase in current supply, due to the transistor, causes a corresponding increase in the output voltage.The combination of the two mechanisms enables the LT1120IS8#TRPBF to maintain a precise, stable output voltage even when the input voltage is varying. It also features over-temperature protection and inrush-current protection to ensure stable operation under all operating conditions.

Conclusion

The LT1120IS8#TRPBF is an ultra-low noise, low-quiescent current regulator from Linear Technology. It is ideal for powering sensitive analog circuitry and multiple output systems and can be used in a wide range of applications, from computing to automotive systems. It features a wide input voltage range of up to 40V, over-temperature protection, and inrush current protection. The LT1120IS8#TRPBF operates by drawing current from the input voltage and supplying it to the output voltage in two different directions. With its low dropout design, ultra-low noise, and wide input voltage range, the LT1120IS8#TRPBF is an efficient and versatile solution for voltage regulation.

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