W83310G-R2

Overview

The W83310G-R2 is a bus termination regulator manufactured by Nuvoton Technology Corporation. It is designed for DDR SDRAM bus terminator applications, providing bidirectional sinking and driving capability. The device integrates power MOSFETs to minimize external component count and operates with low output voltage offset.

Feature Summary

• Regulates bi-directional power with integrated driving and sinking capabilities
• Features integrated power MOSFETs for reduced external component requirements
• Operates with low output voltage offset for signal integrity
• Supports +3.3V and +2.5V control power supplies

Applications

• DDR Bus Termination Regulator
• Active Termination circuits
• SSTL-2 interfaces
• SSTL-3 interfaces

Procurement Notes

Verify the manufacturer designation carefully, as Winbond also produces the W83310G-R2. Confirm that the specific revision suffix matches your design requirements. Ensure compatibility with the intended DDR memory generation and voltage levels before procurement.

Selection Notes

Select this component for designs requiring a linear regulator solution for DDR bus termination. It is suitable for applications needing bidirectional current handling with minimal external passive components. Consider the package size and thermal performance relative to the board layout constraints.

Part Context

This part belongs to the W83310 series of bus termination regulators. Variants such as W83310SG and W83310DS offer similar functionality with potential differences in protection features or packaging. The series is widely used in memory subsystems for consumer and industrial electronics.

Replacement Considerations

Cross-reference with W83310DG and W83310DS for pin-compatible alternatives. Verify functional equivalence regarding current ratings and control voltage specifications when substituting.