LP3971SQ-F211/NOPB

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The LP3971SQ-F211/NOPB is an advanced power management integrated circuit (PMIC). It is part of the Texas Instruments LP3971 series of PMICs, which is designed for multi-power supply applications in audio, high-voltage battery powered systems, and handheld and portable applications. The LP3971SQ-F211/NOPB is a low-voltage PMIC with Programmable Power (PP), Programmable Buck (PVB) and Programmable Buck-Boost (PB) regulators. It is the most suitable IC for applications that require precise control in power-supply designs.

The LP3971SQ-F211/NOPB PMIC is designed to manage multiple power supplies in high-voltage battery powered portable and handheld electronic systems. It integrates two Programmable Buck (PVB) regulators, two Programmable Buck-Boost (PB) regulators, and one Programmable Power (PP) regulator into a single IC. Additionally, it features four power-correction circuits, four high current discharge switches, and four low output voltage switches for the ability to turn off specific outputs and disconnect the power-supply lines.

The LP3971SQ-F211/NOPB PMIC combines precise voltage control with advanced protection features. It provides excellent line and load regulation, and includes undervoltage and overvoltage protection for each of the PVB, PB, and PP regulators. The PMIC also provides temperature protection and overload protection, ensuring safety in the event of an overcurrent situation.

The Programmable Buck (PVB) regulator is designed to supply a device with a constant output voltage and a wide input voltage range. It features excellent line and load regulation, and is suitable for delivering the required power to a number of different types of components, including system memory, audio codecs, and digital power supply solutions. The LP3971SQ-F211/NOPB PMIC integrates two PVB regulators with output voltages of 0.6V to 3.3V DC, and up to 1.25A of output current.

The Programmable Buck-Boost (PB) regulator provides both step-up and step-down conversion from a wide input voltage range to a desired output voltage. It is suitable for powering a variety of ICs, lightning components, or batteries with an output voltage range of 0.6V to 5.5V DC. The LP3971SQ-F211/NOPB PMIC integrates two PB regulators with up to 0.4A of output current.

The Programmable Power (PP) regulator integrates three buck regulators, each with independent output voltage and current control. It is ideal for powering analog and digital ICs, and is capable of supplying up to 6A of current with output voltage ranging from 0.6V to 3.3V DC. The PP regulator features an adjustment pin which can be used to alter the output voltage in order to account for current drops.

In addition to the advanced voltage control and protection features, the LP3971SQ-F211/NOPB PMIC also features an array of monitoring and diagnostic features. It includes fault flags, power-on reset, and an interrupt controller to report various events. These features make it possible to diagnose and correct errors more efficiently.

Overall, the LP3971SQ-F211/NOPB PMIC is an ideal choice for applications that require precise voltage control and advanced protection features in a single package. It is the perfect solution for a wide range of audio, high-voltage battery powered systems, and handheld and portable applications.

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