LP3972SQ-I514

LP3972SQ-I514, also known as LPC3972 is an advanced power management integrated circuit (PMIC) from the Ti Pm39 series. It is an integrated power system (IPS) which combines multiple power source operation, supply sequencing and power management features in one package. This PMIC is ideal for consumer electronic systems and provides excellent system performance from its wide range of capabilities like voltage tracking and regulation, load/supply/battery monitoring, as well as clock rate control.

Application Field

The LP3972SQ-I514 is a great choice for consumer-based systems due to its wide range of features and its low profile size. This PMIC has even been used in a variety of applications such as mobile phones, PDAs, gaming systems, industrial controls, laptops and more. Additionally, this PMIC is certified with the USB-IF, meaning it has been tested and approved for use in electronics certified with the USB standard.

The LP3972SQ-I514 is an extremely versatile PMIC which can provide system control for up-to 5 power sources. This includes 1.0V - 3.3V regulators,1.8V - 3.3V LED drivers, 1 VBAT, and one additional power source of up to 4.5V/3.3V. Furthermore, users can opt to use the internal oscillators, watchdog timer and DC/DC voltage converters provided. This PMIC is also capable of sequencing, allowing users to set up the order in which a system powers on.

Working Principle

The working principle of LP3972SQ-I514 PMIC is quite simple but complex and requires knowledge on power management integrated circuits. This PMIC uses a feature called I2C communication interface, which allows it to connect with a variety of connected devices. With I2C communication, this PMIC can send voltage to connected devices and monitor the same devices. It can also read information from integrated symmetric loops, current sources and load adjustments, as well as temperature and voltage monitoring.

The LP3972SQ-I514 also contains specific features that allow it to track and regulate different power sources including DC/DC converter outputs and transformers. This PMIC can build up the power supply system even with reduced output voltage and characteristics. Additionally, the LP3972SQ-I514 PMIC provides safety features such as thermal shutdown, soft start, over voltage and over current protection, which can help to prevent system damage.

Conclusion

In conclusion, the LP3972SQ-I514 is an advanced PMIC that offers great performance in a wide range of applications. It is capable of providing system control for up to 5 power sources and can also provide voltage tracking and regulation, load/supply/battery monitoring, and even clock rate control. Thanks to its I2C communication interface, this PMIC can easily connect with various external devices and send voltage information, monitor temperature, and adjust load and supply. Additionally, this PMIC provides safety features such as over voltage and over current protection.