The NCP51400 is a source/sink Double Data Rate (DDR)

termination regulator specifically designed for low input voltage and

low−noise systems where space is a key consideration.

The NCP51400 maintains a fast transient response and only requires

a minimum output capacitance of 20 F. The NCP51400 supports

a remote sensing function and all power requirements for DDR VTT

bus termination. The NCP51400 can also be used in low−power

chipsets and graphics processor cores that require dynamically

adjustable output voltages.

The NCP51400 is available in the thermally−efficient DFN10

Exposed Pad package, and is rated both Green and Pb−free.

Features

• For Automotive Applications

• Input Voltage Rails: Supports 2.5 V, 3.3 V and 5 V Rails

• PVCC Voltage Range: 1.1 V to 3.5 V

• Integrated Power MOSFETs

• Fast Load−Transient Response

• PGOOD − Logic output pin to Monitor VTT Regulation

• EN − Logic input pin for Shutdown mode

• VRI − Reference Input Allows for Flexible Input Tracking Either

Directly or Through Resistor Divider

• Remote Sensing (VTTS)

• Built−in Soft Start, Under Voltage Lockout and Over Current Limit

• Thermal Shutdown

• Small, Low−Profile 10−pin, 3x3 DFN Package

• NCV51400MWTXG − Wettable Flank Option for Enhanced Optical

Inspection

• NCV Prefix for Automotive and Other Applications Requiring

Unique Site and Control Change Requirements; AEC−Q100

Qualified and PPAP Capable*

• These Devices are Pb−Free and are RoHS Compliant

Applications

• DDR Memory Termination

• Desktop PC’s, Notebooks, and Workstations

• Servers and Networking equipment

• Telecom/Datacom, GSM Base Station

• Graphics Processor Core Supplies

• Set Top Boxes, LCD−TV/PDP−TV, Copier/Printers

• Chipset/RAM Supplies as Low as 0.5 V

• Active Bus Termination