ACT88420-101SR

Overview

The Qorvo ACT88420-101SR is a highly configurable, programmable constant on-time (COT) power management integrated circuit designed for space-constrained applications. It features six voltage rails, including two 4 A and two 2 A buck regulators, plus two 400 mA LDOs. Regulators 1 and the first LDO are configurable as load switches, while regulator 4 functions as a dedicated 400 mA LDO. The device operates within an input voltage range of 2.7 V to 5.5 V and integrates I2C monitoring, programmable power sequencing, and eight configurable tri-state GPIOs. Packaged in a compact 2.66 x 2.66 mm 36-ball WLCSP, it minimizes external component requirements.

Feature Summary

• Highly configurable architecture with six independent voltage rails supporting flexible system design
• Programmable constant on-time regulation ensuring stable performance across varying load conditions
• Integrated I2C interface enabling dynamic reconfiguration of parameters without PCB changes
• Compact WLCSP packaging optimized for space-limited IoT and embedded applications

Applications

• Internet of Things (IoT) devices
• Point-of-sale (POS) terminals
• Network cameras

Procurement Notes

Verify the specific suffix against official Qorvo documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing board layouts regarding the 36-ball WLCSP footprint. Confirm that the 2.7 V to 5.5 V input range aligns with your system's power supply architecture before integration.

Selection Notes

Select this PMIC when multiple voltage rails are required in a minimal footprint. Its programmability allows support for multiple SKUs without hardware revisions. Consider its efficiency at both heavy and light loads for battery-powered designs. Verify that the available GPIO count meets your control interface requirements.

Part Context

This component belongs to Qorvo’s advanced PMIC portfolio, which emphasizes high configurability and compact form factors. It complements other models like the ACT88422 by offering similar multi-rail capabilities but tailored for broader IoT and commercial applications requiring flexible power distribution.

Replacement Considerations

No public confirmed substitute part numbers are documented for this specific model.