NCP51401 Datasheet, PDF (1/6 Pages) ON Semiconductor – Termination Regulator

NCP51401
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3 Amp V_TT Termination
Regulator DDR1, DDR2,
DDR3, LPDDR3, DDR4
The NCP51401 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 NCP51401 maintains a fast transient response and only requires
a minimum output capacitance of 20 mF. The NCP51401 supports a
remote sensing function and all power requirements for DDR V_TT bus
termination. The NCP51401 can also be used in low−power chipsets
and graphics processor cores that require dynamically adjustable
output voltages.
The NCP51401 is available in the thermally−efficient DFN10
Exposed Pad package, and is rated both Green and Pb−free.
Features
• Input Voltage Rails: Supports 2.5 V, 3.3 V and 5 V Rails
• PV_CC Voltage Range: 1.1 to 3.5 V
• Integrated Power MOSFETs
• Fast Load−Transient Response
• P_GOOD − Logic output pin to Monitor V_TT Regulation
• EN − Logic input pin for Shutdown mode
• V_RI − Reference Input Allows for Flexible Input Tracking Either
Directly or Through Resistor Divider
• Remote Sensing (V_TTS)
• Built−in Under Voltage Lockout and Over Current Limit
• Thermal Shutdown
• Small, Low−Profile 10−pin, 3x3 DFN Package
• 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
www.onsemi.com
DFN10, 3x3, 0.5P
CASE 485C
MARKING DIAGRAM
51401
ALYWG
G
51401 = Specific Device Code
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
PIN CONNECTION
V_RI
PV_CC
V_TT
P_GND
V_TTS
+
1
2
3
4
5
GND
10 V_CC
9 _PGOOD
8 GND
7 EN
6 V_RO
Exposed Pad
ORDERING INFORMATION
Device
Package Shipping^†
NCP51401MNTXG DFN10 3000 / Tape &
(Pb−Free)
Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
© Semiconductor Components Industries, LLC, 2015
1
March, 2015 − Rev. P0
Publication Order Number:
NCP51401/D