LP3971SQE-W416/NOPB

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The LP3971SQE-W416/NOPB is a power management integrated circuit (PMIC) that provides exceptional protection and performance features for portable, battery-powered applications. It is a specialized Device, offering a unique mix of features that enhance system performance, improve reliability, and reduce power consumption. This powerhouse of features includes a wide input voltage range (2.7V-16 V) that allows for direct connection to industrial, automotive and other wide range DC power sources. It also contains a high voltage power supply of 2V to 24V with up to 600mA of output current. In addition, it has an adjustable and configurable voltage header, a low voltage power supply with wide input voltage range (1.8V-6V) and up to 3A of output current, an efficient regulator that integrates two synchronous buck and two boost converters, two fast switching voltage regulators, three low dropout linear regulators, and two thermal monitoring and protection circuits.

The LP3971SQE-W416/NOPB is designed to be used in a variety of power-sensitive applications including wearables, medical and monitors, entertainment systems, automotive systems, and industrial automation. Its features allow for current and voltage monitoring, thermal protection, and additional features like programmable turn-on/turn-off sequences for multiple loads. The synchronous buck and boost converters provide excellent power efficiency (up to 96%) and significant noise suppression, while the fast-switching regulators help reduce power consumption.

The LP3971SQE-W416/NOPB is based on its’ parent device, the LP3971, and includes features from the LP3971 such as low power consumption, thermal protection, and an adjustable output voltage. It offers high efficiency up to 96% and a wide output voltage range of 1.8V to 24V, while providing high ripple rejection and low output noise. It also offers thermal shutdown and overvoltage protection, as well as individual enable/disable control inputs for each output.

The LP3971SQE-W416/NOPB application field and working principle is based on a main control core, which is responsible for communication between a microcontroller and the regulators. The core receives commands from the microcontroller and provides the required power supply voltage by switching the MOSFETs. The switching frequency of the MOSFETs is regulated according to the load, temperature and input voltage, which provides optimal operating conditions for all connected devices. Additionally, the main core is responsible for the protection of the device from overvoltage and overcurrent.

The LP3971SQE-W416/NOPB also includes a wide range of features such as Polarity-Protection, Over-current and Over-voltage Protection, Thermalfoldback, and over-temperature protection. Additionally, the device has configurable outputs, which allow for programmability of the output voltages. All of these features combine to make the LP3971SQE-W416/NOPB an ideal choice for portable and industrial applications.

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