ACT88321VU107SR

Overview

The ACT88321 is a highly integrated power management IC designed for mobile applications. It features four high-efficiency synchronous buck converters, including two main DC-DCs and two LDOs, alongside multiple GPIOs and I2C interfaces. The device supports input voltages up to 5.5V and provides precise voltage regulation with fast transient response capabilities. Integrated protection mechanisms include over-current, over-temperature, and short-circuit protection. The component is housed in a compact WLCSP package, optimizing board space while delivering comprehensive power sequencing and monitoring functions for system stability.

Feature Summary

• Integrates multiple power rails including synchronous buck converters and low-dropout regulators within a single compact footprint.
• Provides advanced power sequencing and monitoring capabilities to ensure reliable system startup and shutdown operations.
• Features built-in protection mechanisms against over-current, over-temperature, and short-circuit conditions for enhanced safety.

Applications

• Smartphones and mobile communication devices
• Tablets and portable computing platforms
• Wearable electronics requiring efficient power management

Procurement Notes

Verify the specific suffix codes on the ordering information to confirm pin compatibility and thermal characteristics. Ensure that the selected variant matches the required output voltage ranges and current capabilities for your design. Cross-reference the datasheet revision history to account for any updates in electrical specifications or recommended operating conditions before finalizing procurement.

Selection Notes

Select this component when a compact solution is needed for multi-rail power systems in mobile devices. Evaluate the total output current requirements against the individual converter capabilities to ensure adequate headroom. Consider the thermal performance of the WLCSP package relative to the ambient operating environment and PCB layout constraints for optimal heat dissipation.

Part Context

This part belongs to Qorvo's ACT series of power management ICs, which are tailored for consumer electronics. The series emphasizes integration and efficiency to extend battery life in portable devices. The ACT88321 specifically targets applications requiring multiple regulated outputs from a single input source, simplifying the power architecture.

Replacement Considerations

Check for direct pin-to-pin compatible alternatives within the same product family that offer similar voltage and current ratings. Verify that any substitute maintains the same control interface and sequencing logic to avoid redesigning the firmware or hardware control lines.

FAQ

What is the maximum input voltage supported by the ACT88321?

The device supports an input voltage range up to 5.5V, suitable for single-cell lithium-ion battery applications.

Does the ACT88321 include over-temperature protection?

Yes, the IC includes integrated over-temperature protection to shut down the converters if thermal limits are exceeded.