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

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