LT1185IT#06PBF

Introduction

The LT1185IT#06PBF is a mono-voltage, low-dropout linear regulator with an adjustable output voltage. It operates from a +3V to +24V input voltage and provides a precise +2.5V to +20V output voltage. With its 4-terminal integrated device, LT1185IT#06PBF is widely used in power supply management in the electronic market for a variety of applications. The LT1185IT#06PBF is intended for high-current, continuous-mode operation and provides adjustable current-limit protection. It is designed to reduce power loss and improve power-supply transient response, particularly with respect to input voltage transients.

Application Fields

The LT1185IT#06PBF is widely used in various applications, particularly in power supply management, such as:

• Battery management systems.
• Power conversion.
• Switched-mode power supplies.
• Charge pump power supplies.
• High voltage/high performance applications.
• Industrial-control systems.
• Medical/safety systems.
• Automotive systems.

Working Principle

The LT1185IT#06PBF low-dropout linear regulator operates on a single voltage supply and provides a regulated output voltage with an adjustable current limit. It is based on the well-known linear-regulator design which includes a series pass-element to reduce output voltage as the current draw increases. A error amplifier compares the voltage across the series pass element to a reference voltage, providing feedback to the pass-element to keep the output voltage constant. The current limiting of Linear Regulator is mainly used to prevent the wrong use of power supply.

When the output current exceeds the preset current limit, the voltage across the series pass element will forcibly increase, causing the error amplifier to reduce the gain of the series pass element, thereby limiting the output current. The current-limit setting on the LT1185IT#06PBF is adjustable and can be configured with an external resistor. It has an external enable feature which can be used to control the output voltage. The device includes over-temperature protection as well as short-circuit and overvoltage protection.

Conclusion

In conclusion, the LT1185IT#06PBF low-dropout linear regulator is a versatile and reliable voltage regulator, suitable for a wide range of power supply management applications. It is easy to set up, with an adjustable current limit and external enable feature. The device is designed to reduce power loss and improve power-supply transient response.