NCP51400MNTXG

Overview

The NCP51400MNTXG is a DDR termination regulator designed for low input voltage and low noise systems. It integrates a high-performance LDO linear regulator capable of simultaneous source and sink current delivery. The device supports input voltages from 2.375 V to 5.5 V, with an output voltage range up to 750 mV. It features a fast feedback loop allowing the use of small ceramic capacitors for rapid load transient response, requiring a minimum of 20 μF output capacitance. The part operates within a temperature range of -40°C to +125°C and draws 700 μA of input current.

Feature Summary

• Integrates a high-performance low-dropout linear regulator providing simultaneous source and sink current capabilities for stable DDR termination.
• Features a fast feedback loop architecture that enables rapid load transient response using minimal external ceramic capacitance.
• Includes comprehensive protection mechanisms such as soft start, under-voltage lockout, over-current limit, and thermal shutdown for system reliability.

Applications

• DDR memory termination for DDR1, DDR2, DDR3, LPDDR3, and DDR4 standards
• Desktop computers, laptops, workstations, servers, and network equipment
• Telecommunications and data communication base stations
• Consumer electronics including set-top boxes and LCD/PDP TVs

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging and tape specifications. Confirm that the component meets RoHS compliance requirements for your target assembly process. Cross-reference the datasheet revision date to ensure all electrical characteristics and pin configurations align with your design specifications before finalizing procurement.

Selection Notes

Select this component when designing systems requiring precise tracking termination for various DDR memory generations. Ensure the input voltage rail falls within the 2.375 V to 5.5 V range and that the required output current does not exceed 3 A. Consider the DFN-10 package size for space-constrained layouts and verify that the remote sense capability can be effectively utilized to maintain accuracy across PCB traces.

Part Context

This device belongs to the NCP51400 series of specialized power management ICs focused on DDR termination applications. It is part of Onsemi's portfolio aimed at reducing component count and board space in memory subsystems. The series provides integrated solutions that replace discrete resistor networks and separate regulators, simplifying the design of high-speed memory interfaces.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult the manufacturer's official replacement guide or contact technical support directly for validated cross-reference information. Do not assume functional compatibility with other DDR termination regulators without verifying pinouts and electrical parameters.