W83310DG-A

Overview

The W83310DG-A is a bus termination regulator manufactured by Nuvoton Technology Corporation, designed for DDR SDRAM applications. It operates within an input voltage range of 1.62V to 3.63V and provides a single output channel. The device delivers a continuous 2.0 Amp bidirectional sinking and driving capability, ensuring stable signal integrity for memory bus termination. It is housed in an 8-SOIC package with a width of 3.90mm (0.154 inches). The component supports surface mount installation and functions within a commercial operating temperature range of 0°C to 70°C.

Feature Summary

• Provides continuous 2.0 Amp bidirectional current drive for DDR SDRAM bus termination
• Integrates over-temperature and over-current limit protection mechanisms
• Supports Intel Springdale GMCH and MCH-VTT architectures

Applications

• DDR SDRAM bus terminator application
• Intel Springdale GMCH systems
• MCH-VTT voltage regulation

Procurement Notes

Verify the specific suffix 'DG-A' against official Nuvoton documentation to confirm pinout compatibility and thermal specifications. Confirm that the 8-SOIC package dimensions align with the target PCB footprint. Ensure the input voltage supply remains strictly within the 1.62V to 3.63V operational window to prevent device malfunction or damage during system integration.

Selection Notes

Select this component when a dedicated linear regulator is required for DDR memory bus termination with high current handling capabilities. The integrated protection features make it suitable for systems requiring robust fault management. Verify that the commercial temperature range meets the environmental requirements of the final assembly, as industrial grade variants may differ in performance characteristics.

Part Context

This part belongs to the W83310 series of bus termination regulators from Nuvoton. The series includes variants such as the W83310SG, which shares similar functional characteristics but may differ in packaging or specific protection thresholds. These devices are specialized ICs designed to replace discrete resistor networks, offering improved power efficiency and board space savings in memory subsystem designs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.