The model "NCP1653ADR2G" is a product from ON Semiconductor. It is a voltage regulator (specifically a high-performance, low-dropout regulator). Below is an explanation of its pin function, specifications, circuit principle, and additional detailed questions about the package and pin functions.
Package Type
The "NCP1653ADR2G" comes in a SOIC-8 (Small Outline Integrated Circuit) package. The package has 8 pins in total.Pin Functions of the NCP1653ADR2G (SOIC-8 Package)
Pin Number Pin Name Pin Function Description 1 IN Input Voltage Pin: This pin is where the input voltage is supplied. The voltage range typically goes from 2.7V to 6V. 2 GND Ground Pin: Connect to the ground of the circuit. 3 OUT Output Voltage Pin: The regulated output voltage is available on this pin. 4 ON/OFF Enable Pin: This pin controls the regulator's operation. When the pin is pulled low, the regulator turns off. 5 FB Feedback Pin: Used to sense the output voltage and maintain regulation by feeding the feedback into the control loop. 6 NC No Connect: This pin is not internally connected to any circuitry, and thus it should be left unconnected in the circuit. 7 NC No Connect: Same as pin 6. 8 OUT Output Voltage Pin: It is also connected to the regulated output. This pin is an additional output for stability reasons in some configurations.Detailed Circuit Principle
The NCP1653ADR2G operates as a low-dropout regulator (LDO), which is typically used for power supply systems where a stable output voltage is required despite variations in the input voltage. The LDO utilizes the feedback mechanism to regulate the output and ensures that it remains stable as per the design specifications, typically designed for low-power applications.
Detailed FAQ for NCP1653ADR2G
1. What is the input voltage range for the NCP1653ADR2G?The input voltage range is from 2.7V to 6V.
2. What type of package does the NCP1653ADR2G come in?The NCP1653ADR2G comes in a SOIC-8 package.
3. How many pins does the NCP1653ADR2G have?The NCP1653ADR2G has 8 pins in total.
4. What is the output voltage provided by the NCP1653ADR2G?The NCP1653ADR2G is typically used to provide a regulated output voltage. The specific output voltage depends on the feedback design but can be adjusted within the specified range.
5. What is the purpose of the feedback (FB) pin?The FB (Feedback) pin is used to sense the output voltage to ensure that the regulator maintains the desired output voltage.
6. Can the NCP1653ADR2G be turned off?Yes, the NCP1653ADR2G can be turned off by pulling the ON/OFF pin low.
7. What does the NC pin mean?The NC pin stands for No Connect and should be left unconnected in the circuit.
8. What is the typical dropout voltage for the NCP1653ADR2G?The typical dropout voltage is around 100 mV at 100 mA of load current, which makes it ideal for applications where the input voltage is close to the output voltage.
9. What are the applications of the NCP1653ADR2G?The NCP1653ADR2G is suitable for low-power applications, such as battery-powered devices and systems requiring low dropout voltage.
10. Is the NCP1653ADR2G protected against over-temperature or over-current?Yes, the NCP1653ADR2G typically has built-in protections like over-temperature and over-current protection.
11. How do I connect the NCP1653ADR2G in a circuit?Connect the IN pin to the input voltage, the OUT pin to the output load, and the GND pin to ground. Ensure that the FB pin is connected to the voltage sensing network for feedback regulation.
12. What is the maximum output current that the NCP1653ADR2G can supply?The NCP1653ADR2G can typically supply up to 150 mA of output current.
13. What is the role of the ON/OFF pin?The ON/OFF pin controls the enabling and disabling of the regulator. A low logic level turns the regulator off, and a high logic level turns it on.
14. Can I use the NCP1653ADR2G for different output voltages?Yes, the output voltage can be adjusted by changing the resistors connected to the FB pin.
15. What is the typical quiescent current of the NCP1653ADR2G?The typical quiescent current is very low, typically around 35 µA, which makes it suitable for low-power systems.
16. What should I do if the NCP1653ADR2G is heating up?If the NCP1653ADR2G is heating up, check if the input voltage is too high or if the output current exceeds its rated capacity. Ensure proper heat dissipation.
17. What is the thermal shutdown feature in the NCP1653ADR2G?The thermal shutdown feature turns off the regulator if it overheats to prevent damage.
18. Can I use the NCP1653ADR2G in automotive applications?Yes, it is suitable for automotive applications as it can handle a wide input voltage range and is robust enough for many environments.
19. Does the NCP1653ADR2G require external capacitor s?Yes, external capacitors are recommended for stability and noise reduction in typical applications.
20. What is the output voltage tolerance of the NCP1653ADR2G?The output voltage tolerance is typically around ±2%.
Conclusion
The NCP1653ADR2G is a low-dropout regulator with 8 pins in a SOIC-8 package, ideal for low-power applications. The device includes various protections and allows for flexibility in adjusting output voltages with external components. Ensure that you adhere to the specifications for optimal performance in your designs.
