NCP51145PDR2G

Overview

The NCP51145PDR2G is a specialized DDR termination regulator manufactured by onsemi. It operates with an input voltage range of 1V to 5.5V and provides a single output adjustable from 600mV to 2.5V. The device supports up to 1.8A source/sink current, ensuring precise signal integrity for high-speed memory interfaces. It is housed in an 8-SOIC package with an exposed pad for thermal management. The component functions as a low-dropout (LDO) linear regulator designed specifically for terminating DDR memory lines.

Feature Summary

• Provides dedicated source and sink current capabilities for accurate DDR termination
• Features adjustable output voltage range to match various DDR standards
• Designed for surface mount installation in compact electronic assemblies

Applications

• DDR memory termination circuits
• High-speed digital interface signal integrity management
• Embedded systems requiring stable reference voltages

Procurement Notes

Verify the specific suffix PDR2G against official onsemi documentation to confirm package type and tape/reel specifications. Confirm that the part status aligns with current production requirements, as availability may vary. Ensure compatibility with existing PCB footprint designs before procurement.

Selection Notes

Select this component when designing DDR memory interfaces requiring precise termination control. Consider the 1.8A current capability and adjustable voltage range for flexibility across different DDR generations. Evaluate thermal performance needs due to the SOIC package configuration and ensure the input voltage supply falls within the specified 1V to 5.5V range.

Part Context

This part belongs to onsemi's portfolio of special purpose regulators tailored for memory applications. It addresses the critical need for stable termination voltages in high-speed data transmission environments. The device integrates linear regulation technology optimized for low noise and fast transient response characteristics essential for modern memory subsystems.

Replacement Considerations

Check for direct pin-compatible alternatives within the same family or newer revisions. Verify if updated packages or enhanced thermal options are available from the manufacturer. Cross-reference electrical parameters to ensure equivalent performance in the target application.