PM6681ATR

Overview

The PM6681ATR is a power management integrated circuit from STMicroelectronics, designed for portable applications. It integrates multiple power rails to support system requirements efficiently. The device features an input voltage range suitable for single-cell lithium-ion battery operation. It includes step-down and low-dropout regulator sections to provide stable output voltages for various subsystems. The component is housed in a compact WLCSP package to minimize board space usage.

Feature Summary

• Integrates multiple power regulation functions within a single chip
• Optimized for single-cell lithium-ion battery powered devices
• Includes step-down converter capabilities for efficient voltage transformation
• Features low-dropout regulators for precise voltage delivery

Applications

• Smartphones and mobile phones
• Personal digital assistants (PDAs)
• Portable media players
• GPS navigation devices

Procurement Notes

Verify the specific ordering suffix against the official datasheet to ensure correct packaging and temperature grade. Confirm that the requested part number matches the exact pin configuration and electrical specifications required by your design. Cross-reference the manufacturer's latest documentation to avoid obsolete variants.

Selection Notes

Choose this component when a compact solution for single-cell battery systems is needed. Ensure the application requires the specific output voltages provided by the integrated regulators. Verify that the thermal performance of the WLCSP package meets the system's heat dissipation requirements under load conditions.

Part Context

This part belongs to STMicroelectronics' portfolio of power management ICs for mobile devices. It complements other components in the system by handling primary power distribution. The integration level reduces the bill of materials and simplifies layout compared to discrete solutions.

Replacement Considerations

Check for direct cross-references in the manufacturer's substitution guide. Verify pin-to-pin compatibility and electrical parameter equivalence before substituting. Ensure any alternative part supports the same input voltage range and output current requirements.