LM3700XCBP-308/NOPB

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Power Management Integrated Circuit (PMIC) is a key component found in most of the modern electronic devices. Their primary purpose is to efficiently manage the power supply from the sources to the load, providing advanced control solutions for power supply and related functions. One of the main PMIC components is a supervisor IC, which is used to provide a level of protection from different power emergencies, such as under-voltage, over-voltage, and over-current conditions. One of the most popular supervisor ICs is the LM3700XCBP-308/NOPB, which is a highly reliable, cost-effective solution for system power solution.

Overview of the LM3700XCBP-308/NOPB

The LM3700XCBP-308/NOPB is a voltage supervisor IC, designed to provide a combination of well-controlled and protected power supply lines. It is specifically designed to work with 3.3V and 5V systems, eliminating the need for a separate regulator or power supply. The LM3700XCBP-308/NOPB provides both over-voltage and under-voltage protection, and provides additional features such as in-rush current limiting, power-good indicator, manual reset input, and delayed reset output. The IC is available in an 8-pin, SOT package.

Application Fields and Working Principles

The LM3700XCBP-308/NOPB is suitable for many applications, including Industrial, Medical, Storage, and Networking. The primary function of the IC is to monitor the system’s power supply line and trigger an alarm or reset signal in case of any emergency conditions are detected. The IC is designed to protect the system from both over-voltage and under-voltage conditions, as well as in-rush current limiting and short-circuit protection. The IC also provides a power-good indicator, which is used to indicate when the system is powered and operational.

The LM3700XCBP-308/NOPB works by monitoring the voltage supplied to the system and comparing it to the set threshold voltage. If the voltage exceeds the set threshold, the IC triggers an over-voltage alarm and shuts down the system. Similarly, if the voltage falls below the threshold, the IC triggers an under-voltage alarm and shuts down the system. In order to protect the system from sudden in-rush current, the IC is equipped with over-current protection and current limiting features.

The IC also features a manual reset input, which allows users to manually reset the system in the event of an emergency. Finally, the IC also provides a delayed reset output, which allows the system to recover from an emergency, such as a power outage. The delayed reset output ensures that the system will not be reset prematurely, and will only be reset after a predetermined time, allowing the system to continue running normally after the power has been restored.

Conclusion

The LM3700XCBP-308/NOPB is a highly reliable, cost-effective solution for system power management. It provides a robust and secure power supply, protecting the system from various power emergencies. It features in-rush current protection, power-good indicator, manual reset input, and delayed reset output. It is suitable for applications in Industrial, Medical, Storage, and Networking, and is available in an 8-pin SOT package.

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