NCV51400MNTXG

Overview

The NCV51400MNTXG is an automotive-grade source/sink tracking termination regulator designed for low input voltage and minimal external component systems. It integrates a high-performance LDO linear regulator capable of simultaneous sourcing and sinking current, utilizing a fast feedback loop to support rapid load transient response with small ceramic capacitors. The device supports input voltage rails of 2.5V, 3.3V, and 5V, with a PVCC range of 1.1V to 3.5V. It features a DFN-10 exposed pad package for thermal efficiency and compactness.

Feature Summary

• Integrated LDO linear regulator providing simultaneous source and sink current capabilities for DDR termination applications.
• Fast feedback loop architecture enabling rapid load transient response using small ceramic output capacitors.
• Flexible reference input (VRI) allowing direct connection or resistive divider for precise input tracking.
• Remote sensing pin (VTTS) ensures accurate VTT feedback by compensating for trace resistance.

Applications

• DDR memory termination for DDR1, DDR2, DDR3, LPDDR3, and DDR4 interfaces.
• Desktop computers, laptops, workstations, servers, and network equipment.
• Telecommunications and data communication base stations.
• Set-top boxes, LCD/PDP TVs, and printers/copiers.
• Chipset and graphics processor core power supplies down to 0.5V.

Procurement Notes

Verify the specific suffix 'MNTXG' against official onsemi documentation to confirm the exact package variant and tape/reel specifications. Ensure the part meets AEC-Q100 automotive qualification requirements if intended for automotive applications. Cross-reference the datasheet revision date to confirm compatibility with current design constraints and environmental standards.

Selection Notes

Select this component when designing systems requiring low noise and space-constrained DDR termination solutions. The integrated LDO reduces external component count compared to discrete designs. Consider the remote sensing capability for long PCB traces to maintain voltage accuracy. Evaluate the thermal performance of the DFN-10 package relative to the expected sink/source current loads in the target application environment.

Part Context

The NCV51400 belongs to the NCP51400 family of DDR termination regulators from onsemi. It is specifically engineered for applications demanding high reliability and low profile. The automotive-grade version (NCV prefix) adheres to strict quality standards, making it suitable for harsh environments. It complements other PMICs in the portfolio by addressing specific memory interface power integrity challenges.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult the official onsemi replacement guide or contact manufacturer representatives for qualified alternatives that match the electrical characteristics and pinout configuration.