NCP51198PDR2G

Overview

The NCP51198PDR2G is a specialized power management IC designed as a DDR memory termination regulator. It integrates a high-performance linear low-dropout (LDO) voltage regulator optimized for terminating DDR SDRAM and DDR2 memory modules. The device provides precise output voltage regulation to ensure signal integrity in high-speed digital interfaces. It operates within an extended industrial temperature range, supporting reliable performance in demanding computing environments.

Feature Summary

• Integrated LDO topology optimized for DDR memory termination applications
• Designed to maintain stable reference voltages for high-speed data buses
• Supports automotive-grade reliability standards

Applications

• DDR SDRAM memory termination circuits
• DDR2 memory module termination
• High-speed digital interface biasing

Procurement Notes

Verify the complete part number including the suffix PDR2G to confirm the specific tape-and-reel packaging configuration. Ensure compatibility with the target PCB footprint and thermal requirements. Confirm that the application design accounts for the specific dropout voltage characteristics of this LDO variant under expected load conditions.

Selection Notes

Select this component when a dedicated termination regulator for DDR or DDR2 memory is required rather than a general-purpose LDO. Consider the package thermal dissipation capabilities relative to the board layout. Verify input voltage headroom against the system supply rails to ensure proper LDO operation without excessive power loss.

Part Context

This part belongs to onsemi's specialized PMIC portfolio focused on memory subsystem support. It complements other logic and driver components by providing clean, regulated termination voltages essential for maintaining eye diagrams and timing margins in synchronous dynamic random-access memory systems.

Replacement Considerations

Direct substitutes are not explicitly confirmed in public documentation. Evaluate alternative DDR termination regulators from the same manufacturer family, ensuring identical pinout and electrical specifications before implementation.