W83310DG

Overview

The W83310DG is a dedicated linear regulator manufactured by Nuvoton Technology Corporation, designed for Intel Springdale GMCH and MCH-VTT applications. It operates within an input voltage range of 1.62V to 3.63V and provides a single output capable of delivering up to 2A. The device is housed in an 8-SOIC surface-mount package with a width of 3.90mm. It supports continuous bidirectional sinking and driving capabilities, making it suitable for DDR SDRAM bus termination. The component functions as a DC-to-DC converter topology specifically optimized for memory interface power regulation.

Feature Summary

• Provides continuous bidirectional current sinking and driving capability for DDR SDRAM bus termination applications
• Designed specifically for Intel Springdale GMCH and MCH-VTT power management requirements
• Operates as a linear regulator with integrated over-temperature and over-current limit protection features

Applications

• Intel Springdale GMCH power supply
• MCH-VTT voltage regulation
• DDR SDRAM bus termination

Procurement Notes

Verify the exact suffix designation against official Nuvoton documentation, as variations may exist. Confirm that the 8-SOIC package matches the specific design requirements. Check for any recent Product Change Notifications (PCN) regarding material or packaging updates. Ensure compatibility with the target motherboard's power sequencing specifications before integration into the final assembly.

Selection Notes

Select this component when designing for Intel Springdale chipset architectures requiring precise VTT voltage control. The 2A bidirectional drive capability is essential for maintaining signal integrity on high-speed memory buses. Consider the thermal performance of the 8-SOIC package in the context of the system's airflow and power density constraints to ensure reliable operation under load.

Part Context

The W83310DG belongs to Nuvoton's specialized PMIC portfolio targeting legacy Intel platform memory interfaces. It complements other components like the W83303 ACPI controller in complete system designs. While newer platforms have evolved, this part remains relevant for maintenance and industrial systems utilizing older Intel chipsets. It represents a niche solution for specific voltage translation needs in server and workstation memory subsystems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult Nuvoton directly for end-of-life alternatives or cross-reference with compatible regulators from other manufacturers if sourcing becomes critical.