LT1121AHVCS8#PBF

Current - Output:	150mA
Base Part Number:	LT1121
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Temperature, Reverse Polarity
Control Features:	Enable
PSRR:	58dB (120Hz)
Current - Supply (Max):	14mA
Current - Quiescent (Iq):	50µA
Series:	--
Voltage Dropout (Max):	0.7V @ 150mA
Voltage - Output (Max):	30V
Voltage - Output (Min/Fixed):	3.75V
Voltage - Input (Max):	30V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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Introduction

LT1121AHVCS8#PBF is a high-voltage, low-dropout linear regulator integrated circuit specially designed for applications that require an efficient and reliable voltage regulation system. It is a very modern, digitally controlled linear regulator which offers a high level of system control and flexibility while maintaining low cost, robust performance and minimal power consumption. The LT1121AHVCS8#PBF voltage regulator is a versatile device that can be used in a variety of applications, ranging from industrial and consumer electronics to medical and military applications.

The Benefits of LT1121AHVCS8#PBF Voltage Regulation

The LT1121AHVCS8#PBF voltage regulator offers several main benefits for today\'s power management applications:

High Accuracy

The LT1121AHVCS8#PBF voltage regulator offers a high degree of accuracy, ensuring that the output voltage remains precisely regulated at all times. This consistent and predictable output voltage allows for improved product reliability and better performance over the long term.

High Efficiency

The high efficiency of the LT1121AHVCS8#PBF voltage regulator ensures that the system expends less energy and experiences less power loss when compared to traditional linear voltage regulators. This results in lower energy costs, fewer heat issues, and improved battery life.

Improved System Monitoring

The LT1121AHVCS8#PBF voltage regulator is equipped with a host of monitoring, diagnostics, and output control functions. This allows for a wide range of system monitoring capabilities, including input and output voltage monitoring, overvoltage and terminal overload detection, reverse current protection, and fault detection. This invaluable information provides valuable insight into system performance and enables improved system monitoring, diagnosis, and maintenance.

Small Footprint

The LT1121AHVCS8#PBF voltage regulator features a small, 4-pin package, making it ideal for space-constrained applications. This small and efficient design helps to reduce the overall cost and complexity of the design and manufacture.

LT1121AHVCS8#PBF Application Field and Working Principle

The LT1121AHVCS8#PBF voltage regulator can be used in a wide variety of applications, including consumer electronics, industrial power supplies, and precision medical instruments. It is ideal for any application that requires stable and reliable voltage regulation over a wide load, temperature, and input voltage range. The LT1121AHVCS8#PBF voltage regulator utilizes a unique principle known as droop-mode regulation, which allows the regulator to sense changes in both load current and input voltage simultaneously. This ensures that the regulator remains stable and precisely regulated over a wide range of input voltages and loads.The LT1121AHVCS8#PBF voltage regulator utilizes an internal error amplifier and adjustable current sense current mirror to control the output voltage. When the voltage across the current sense resistor drops below a predetermined threshold, the error amplifier increases the base bias current of the current mirror, thereby increasing the output voltage. Conversely, when the voltage across the current sense resistor increases above the predetermined threshold, the error amplifier reduces the base bias current of the current mirror, thereby decreasing the output voltage. This technique allows for a wide range of voltage adjustments and makes it easy to configure and maintain stable output voltages over varying inputs and varying load conditions. The LT1121AHVCS8#PBF voltage regulator also features a wide range of protection functions, such as overcurrent protection, overtemperature protection, overvoltage protection, undervoltage protection, reverse current protection, and fault detection. Together, these protection functions ensure that the voltage regulator is well-protected from unexpected events and can quickly recover from any malfunction. Moreover, the LT1121AHVCS8#PBF voltage regulator features a wide range of monitoring and diagnostics features, such as input and output voltage sensing and monitoring, overvoltage detection, terminal overload detection, reverse current protection, and fault detection. This information can then be used to enable predictive maintenance and improve system monitoring, diagnostics, and troubleshooting.

Conclusion

The LT1121AHVCS8#PBF voltage regulator is a modern, digitally controlled linear regulator that provides improved accuracy, efficiency, system monitoring, and protection for a wide range of applications. Its unique droop-mode regulation mechanism ensures that the regulator is stable and precisely regulated over a wide range of input voltages and loads. Additionally, its wide range of protection functions and monitoring capabilities make it ideal for use in a wide range of power management applications.

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