ACT8846QM490-T

Overview

The ACT8846QM490-T is a specialized power management IC (PMIC) manufactured by Qorvo, designed for multi-core application processors. It integrates four DC-DC buck converters and nine LDO regulators within a QFN-48 package. The buck outputs provide currents of 2.8 A and 1.5 A, while the LDOs offer 350 mA and 150 mA capabilities. Operating temperatures range from -40°C to +85°C with an input voltage window of 2.5 V to 9.5 V.

Feature Summary

• Integrates four synchronous buck converters and nine low-dropout linear regulators for comprehensive power distribution.
• Includes dedicated system control features such as I2C interface, interrupt controller, and general-purpose I/O with PWM drivers.
• Provides advanced thermal management and power sequencing through integrated reset controllers and watchdog monitoring.

Applications

• Multi-core application processors
• Video processors
• FPGA peripheral power supplies

Procurement Notes

Verify component authenticity and datasheet alignment before integration. Confirm that the specific suffix matches design requirements. Check current supply status as availability may be restricted or limited. Ensure environmental compliance documentation is obtained. Validate operating temperature ranges against final system constraints.

Selection Notes

Select this PMIC when designing systems requiring high-current buck regulation alongside multiple low-noise LDO rails. Consider the QFN-48 footprint for space-constrained layouts. Evaluate the need for integrated sequencing and reset functions to simplify board design. Verify compatibility with target processor power-up sequences.

Part Context

This component belongs to the ACT8846 series of professional power management units. It is engineered specifically for complex digital logic applications. The device consolidates multiple power stages into a single integrated circuit. This reduces external component count and improves overall system efficiency compared to discrete solutions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for potential cross-reference options if discontinuation occurs.