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NCP51403 Datasheet, PDF (1/7 Pages) ON Semiconductor – Termination Regulator | |||
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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
lowânoise systems where space is a key consideration.
The NCP51403 maintains a fast transient response and only requires
a minimum output capacitance of 20 mF. The NCP51403 supports a
remote sensing function and all power requirements for DDR VTT bus
termination. The NCP51403 can also be used in lowâpower chipsets
and graphics processor cores that require dynamically adjustable
output voltages.
The NCP51403 is available in the thermallyâefficient DFN10
Exposed Pad package, and is rated both Green and Pbâfree.
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
⢠Phase Margin >45° with Recommended 20 mF VTT Capacitance
⢠PGOOD â Logic output pin to Monitor VTT Regulation
⢠EN â Logic input pin for Shutdown mode
⢠VRI â Reference Input Allows for Flexible Input Tracking Either
Directly or Through Resistor Divider
⢠Remote Sensing (VTTS)
⢠Builtâin Under Voltage Lockout and Over Current Limit
⢠Thermal Shutdown
⢠Small, LowâProfile 10âpin, 3x3 DFN Package
⢠These Devices are PbâFree and are RoHS Compliant
Applications
⢠DDR Memory Termination
⢠Desktop PCâs, Notebooks, and Workstations
⢠Servers and Networking equipment
⢠Telecom/Datacom, GSM Base Station
⢠Graphics Processor Core Supplies
⢠Set Top Boxes, LCDâTV/PDPâTV, Copier/Printers
⢠Chipset/RAM Supplies as Low as 0.5 V
⢠Active Bus Termination
www.onsemi.com
DFN10, 3x3, 0.5P
CASE 506CL
MARKING DIAGRAM
51403
ALYWG
G
51403
A
L
Y
W
G
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= PbâFree Package
(Note: Microdot may be in either location)
PIN CONNECTION
VRI
PVCC
VTT
PGND
VTTS
+
1
2
3
4
5
GND
10 VCC
9 PGOOD
8 GND
7 EN
6 VRO
Exposed Pad
ORDERING INFORMATION
Device
Package Shippingâ
NCP51403MNTXG DFN10 3000 / Tape &
(PbâFree)
Reel
â 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.
(see notes on page 6)
© Semiconductor Components Industries, LLC, 2016
1
May, 2016 â Rev. 1
Publication Order Number:
NCP51403/D
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