LP3971SQX-W416/NOPB

Power Management - Specialized Overview

The LP3971SQX-W416/NOPB is a Power Management Integrated Circuit (PMIC) designed for application processors. It operates with a supply voltage range of 2.7 V to 5.5 V and features a quiescent current of 60 µA. The device supports dynamic voltage management with programmable output voltages from 0.725 V to 3.3 V, achieving up to 95% efficiency. It utilizes a 40-pin WQFN EP package and functions within an operating temperature range of -40°C to 85°C.

Power Management - Specialized Feature Summary

• Provides coordinated power rail sequencing to prevent latch-up or functional errors in application processors.
• Supports Dynamic Voltage Management (DVM) with programmable output voltage ranges.
• Delivers high conversion efficiency up to 95% for buck regulator applications.

Power Management - Specialized Applications

• Application processor power management
• Systems requiring coordinated power rail sequencing

Power Management - Specialized Procurement Notes

Verify the specific suffix (W416) against the manufacturer's official documentation to ensure correct pinout and electrical characteristics. Confirm RoHS compliance status via the latest datasheet. Check for end-of-life notifications or recommended new designations. Ensure the 40-pin WQFN EP footprint matches the target PCB layout requirements before procurement.

Power Management - Specialized Selection Notes

Select this component when designing systems that require integrated PMU functionality for application processors. It is suitable for environments needing low quiescent current and efficient buck regulation. Verify that the required output voltage range of 0.725 V to 3.3 V aligns with the processor's specifications. Ensure the operating temperature range of -40°C to 85°C meets the system's thermal constraints.

Power Management - Specialized Part Context

This part belongs to the LP3971 series of specialized power management ICs from Texas Instruments. It is engineered specifically for advanced application processors that demand precise power sequencing and dynamic voltage scaling. The series integrates multiple regulators into a single compact package to reduce board space and simplify power architecture design.

Power Management - Specialized Replacement Considerations

LP3971SQX-B510/NOPB and LP3971SQX-7848/NOPB are documented variants within the same family. Verify if these alternatives share identical pinouts and electrical parameters before substitution. Consult the official datasheet to confirm functional equivalence regarding DVM capabilities and sequencing logic.