NCV1117ST20T3

The NCV1117ST20T3 is an adjustable linear voltage regulator that can supply up to 2.0A of load current. Its high maximum output current rating makes it suitable for most applications, ranging from adjustable high-current motor control to low-current microcontroller and Bluetooth powering. Its input voltage range is 2.7~40V, and adjustable output voltage range is 1.25~37V. It features excellent load/line/temperature regulation and high accuracy ability.

Application Field of NCV1117ST20T3

Due to its wide range of adjustable output voltage, NCV1117ST20T3 is very versatile and is used in a variety of system designs. Its wide input voltage range allows for use in automotive, industrial, and other high-voltage applications. Examples of applications where NCV1117ST20T3 is commonly used include LED driver circuits, adjustable motor control, and adjustable power supplies.

For LED driver circuits, NCV1117ST20T3\'s wide adjustable output voltage range allows for you to get the best control of LED\'s current with varying input voltage. This makes it ideal for automotive applications or other high-voltage environments that require tight control of LED current.

The adjustable output voltage of NCV1117ST20T3 also allows for application in motor control, where it can be used to adjust the speed of the motor. Adjustable power supplies are also very useful with NCV1117ST20T3, as it can be used to adjust the output voltage to suit the specified requirement.

Working Principle of NCV1117ST20T3

The NCV1117ST20T3 operates from an input voltage of 2.7V to 40V and provides an adjustable output to 1.25V to 37V. The circuit includes an active low-dropout pass transistor, operational amplifiers and other components for the reference and feedback circuits. The voltage reference is set by the resistor divider network divided from the external supply voltage and the pass transistor is controlled by the error amplifier for optimum performance. When the output voltage demands current, the error amplifier monitors the output voltage from the feedback loop and drives the pass transistor to the ground. This causes the voltage drop to increase, resulting in higher output voltage. The error amplifier compares the output current with reference or set point and adjusts the output voltage accordingly.

The voltage divider network controls the reference voltage, which is used to set the output voltage. This can be adjusted by changing the ratio of the resistors in the network. The maximum load current of NCV1117ST20T3 is 2.0A and total power dissipation is up to 15W. It also features excellent line regulation, load regulation and temperature stability.

Conclusion

The NCV1117ST20T3 is a versatile and adjustable linear voltage regulator perfect for any application. Its wide input and output voltage range allow for use in automotive, industrial, and other high-voltage applications. Its excellent line regulation, load regulation and temperature stability make it perfect for controlling LED drivers, adjustable motor control, and adjustable power supplies. The adjustable output voltage can be set by changing the ratio of the resistors in the divider network, and the maximum load current is 2.0A.