ACT88321VU105SR

Overview

The Qorvo ACT88321VU105SR is an Advanced Constant On-Time (COT) Power Management IC (PMIC) from the ActiveCiPS™ series. It integrates three buck converters, two low-dropout (LDO) regulators, and a load bypass switch within a compact WLCSP-30 package measuring 2.18mm x 2.58mm. The device supports an input voltage range of 2.7 V to 5.5 V with a maximum output current capability of 4 A for the primary buck channels. Operating temperatures span from -40°C to +125°C, and it features a quiescent current of 260 µA.

Feature Summary

• Integrates multiple voltage regulation stages including buck converters and LDOs in a single compact footprint
• Offers high configurability via I²C interface allowing reprogramming without PCB changes
• Includes integrated sequencing and programmable GPIOs for system-level control
• Supports flexible sleep modes and multiple wake-up triggers for power optimization

Applications

• Solid-State Drives (SSD)
• FPGA power management
• Video processors
• Microcontrollers
• Computer vision systems

Procurement Notes

Verify the specific suffix '105' against official Qorvo documentation to confirm exact output voltage configurations and pin assignments. Ensure compatibility with the WLCSP-30 packaging requirements during procurement. Confirm that the selected variant meets the thermal and electrical specifications required for the target application environment before finalizing orders.

Selection Notes

Select this PMIC when design constraints require a highly integrated solution with minimal external components. It is suitable for applications needing configurable power rails and advanced power management features such as load bypass and precise sequencing. Consider the small form factor and high switching frequency capabilities when evaluating board space limitations.

Part Context

This component belongs to the ACT88321 series of Advanced PMICs designed for processor power delivery. It shares architectural similarities with other ActiveCiPS™ devices like the ACT88329 but offers specific channel configurations tailored for diverse processing loads. The series emphasizes design flexibility and rapid deployment through software-configurable parameters.

Replacement Considerations

Direct substitutes may include other ACT88321 variants with different suffixes indicating distinct voltage settings or packaging options. Verify functional equivalence regarding pinout and electrical characteristics before substitution.