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Product Detailed Parameters
- Description：IC REG BUCK 81QFN
- Series：-
- Mfr：Cirrus Logic Inc.
- Package：Tape & Reel (TR)
- Applications：Handheld/Mobile Devices
- Current - Supply：-
- Voltage - Supply：2.7V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：81-VQFN Dual Rows, Exposed Pad
- Supplier Device Package：81-QFN (8x8)
- Grade：-
- Qualification：-
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Overview
The WM8321GEFL/RV is a specialized power management integrated circuit (PMIC) manufactured by Cirrus Logic. It functions as an integrated power subsystem designed for handheld and mobile devices. The component is housed in an 81-pin QFN package measuring 8x8 mm. It integrates buck regulators and battery management capabilities to support portable electronics applications.
Feature Summary
- Integrates multiple power regulation stages within a single compact package
- Includes dedicated battery management functionality for portable systems
- Optimized for space-constrained handheld and mobile device designs
Applications
- Handheld mobile devices
- Portable consumer electronics
- Battery-powered systems requiring integrated power management
Procurement Notes
Verify the End of Life status before procurement planning, as this component may be discontinued. Confirm current availability through authorized distributors or secondary market suppliers. Ensure compatibility with existing PCB layouts due to the specific 81-QFN footprint. Review datasheet revisions for any functional updates prior to final design implementation.
Selection Notes
Select this PMIC when a consolidated solution for power regulation and battery management is required in mobile applications. The 81-QFN package offers a compact form factor suitable for dense board layouts. Consider the integrated nature of the subsystem to reduce component count and simplify power architecture design for portable devices.
Part Context
This part belongs to the Cirrus Logic WM8321 series of power management ICs. It is categorized under specialized PMICs intended for mobile and handheld markets. The GEFL suffix indicates the specific package type and reel configuration. It represents a system-level approach to power management rather than discrete regulator components.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Due to the End of Life notification, alternative sourcing should focus on verifying stock availability from authorized channels or evaluating newer generations of Cirrus Logic PMICs that maintain pin compatibility.
