RT8848AGQW

Overview

The RT8848AGQW is a multi-phase PWM controller manufactured by Richtek USA Inc., designed for high-performance power management applications. It features an integrated Buck topology with eight output phases, supporting a switching frequency of 300 kHz. The device accepts a supply voltage range of 2.8V to 24V and operates within a temperature range of -10°C to +105°C. It utilizes I2C serial interface communication and provides precise voltage regulation between 1.33 V and 1.45 V. Packaged in a compact 40-WQFN (5x5) surface-mount format, it includes built-in synchronous rectification and comprehensive control features such as current limiting, soft start, and phase control.

Feature Summary

• Multi-phase architecture with eight independent output channels for distributed load handling
• I2C serial interface integration enabling digital configuration and VID reference control
• Integrated synchronous rectification for enhanced efficiency in Buck converter topologies
• Comprehensive protection and control mechanisms including current limiting, soft start, and power good signaling

Applications

• High-density point-of-load (POL) conversion for server processors
• Power distribution networks for AI and cloud computing platforms
• Multi-core CPU voltage regulation modules requiring synchronized phase control
• Enterprise communication equipment power supplies

Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required packaging formats, such as cut tape or reel options. Confirm that the selected variant meets the necessary moisture sensitivity level classifications for your assembly process. Cross-reference the manufacturer part number with official distributor catalogs to validate authenticity and avoid counterfeit components. Ensure design inputs align with the specified supply voltage and thermal operating ranges defined in the datasheet.

Selection Notes

Select this component when designing systems requiring high-current delivery through multiple interleaved phases to minimize input and output ripple. The I2C interface allows for dynamic voltage scaling and remote monitoring capabilities essential for modern processor power architectures. Consider the 40-WQFN package size for space-constrained layouts while accounting for thermal dissipation requirements associated with high-phase-count controllers. Validate compatibility with target processor VID protocols before finalizing the design.

Part Context

This device belongs to the RT8848 family of multi-phase PWM controllers from Richtek, specifically engineered for demanding computing applications. It serves as a critical power management integrated circuit within complex PMIC subsystems. The AGQW designation indicates the specific package type and temperature grade. It complements other Richtek solutions by providing robust phase synchronization and digital control interfaces suitable for next-generation high-performance computing environments.

Replacement Considerations

The RT8848AN-B is listed as an alternative part number alias for this component. Verify pinout compatibility and electrical specifications against the primary datasheet before substitution. No other direct cross-model replacements are confirmed in the provided documentation.