NCP51403: 3 Amp VTT Termination Regulator DDR1, DDR2, DDR3, LPDDR3, DDR4

The NCP51403 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 NCP51403 maintains a fast transient response and only requires a minimum output capacitance of 20 uF. The NCP51403 supports a remote sensing function and all power requirements for DDR VTT bus termination. The NCP51403 can also be used in low−power chipsets and graphics processor cores that require dynamically adjustable output voltages.

Features

Input Voltage Rails: Supports 2.5 V, 3.3 V and 5 V Rails
PVCC Voltage Range: 1.1 to 3.5 V
Integrated Power MOSFETs
Fast Load−Transient Response
PGOOD − Logic output pin to Monitor VTT Regulation
VRI − Reference Input Allows for Flexible Input Tracking Either Directly or Through Resistor Divider
EN − Logic input pin for Shutdown mode
Built−in Under Voltage Lockout and Over Current Limit

Applications

DDR Memory Termination
Servers and Networking equipment
Graphics Processor Core Supplies
Chipset/RAM Supplies as Low as 0.5 V

End Products

Set Top Boxes, LCD−TV/PDP−TV, Copier/Printers
Desktop PC’s, Notebooks, and Workstations

Data Sheets (1)

Document Title	Document ID/Size	Revision	Revision Date
3 Amp VTT Termination Regulator DDR1, DDR2, DDR3, LPDDR3, DDR4	NCP51403/D (415kB)	1	May, 2016

Package Drawings (1)

Document Title	Document ID/Size	Revision
DFN10, 3x3, 0.5P	506CL (55.8kB)	O

Order Information

Product	Status	Compliance	Package		MSL*	Container		Budgetary Price/Unit
NCP51403MNTXG	Active	Pb-free Halide free	DFN-10	506CL	1	Tape and Reel	3000	$0.345

Specifications

Product	IOUT VTT Max (A)	IQ Typ (µA)	VCC Bias Min (V)	VCC Bias Max (V)	Remote Sense	Power Good
NCP51403MNTXG	3	700	2.375	5.5	Yes	Yes

3 Amp VTT Termination Regulator DDR1, DDR2, DDR3, LPDDR3, DDR4 (415kB) NCP51403

DFN10, 3x3, 0.5P NCP81178