NCP51190 Datasheet, PDF (1/8 Pages) ON Semiconductor – 1.5A DDR Memory Termination Regulator

NCP51190
1.5A DDR Memory
Termination Regulator
The NCP51190 is a simple, cost−effective, high−speed linear
regulator designed to generate the V_TT termination voltage rail for
DDR−I, DDR−II and DDR−III memory. The regulator is capable of
actively sourcing or sinking up to ±1.5 A for DDR−I, or up to ±0.5 A
for DDR−II /−III while regulating the output voltage to within
±30 mV.
The output termination voltage is tightly regulated to track V_TT =
(V_DDQ / 2) over the entire current range.
The NCP51190 incorporates a high−speed differential amplifier to
provide ultra−fast response to line and load transients. Other features
include extremely low initial offset voltage, excellent load regulation,
source/sink soft−start and on−chip thermal shut−down protection.
The NCP51190 features the power−saving Suspend To Ram (STR)
function which will tri−state the regulator output and lower the
quiescent current drawn when the /SS pin is pulled low.
The NCP51190 is available in a DFN8 package.
Features
• Generate DDR Memory Termination Voltage (V_TT)
• For DDR−I, DDR−II, DDR−III Source / Sink Currents
• Supports DDR−I to ±1.5 A, DDR−II, DDR−III to ±0.5 A (peak)
• Integrated Power MOSFETs with Thermal Protection
• Stable with 10 mF Ceramic V_TT Capacitor
• High Accuracy Output Voltage at Full−Load
• Minimal External Component Count
• Shutdown for Standby or Suspend to RAM (STR) mode
• Built−in Soft Start
• These are Pb−Free Devices
Appications
• Desktop PC’s, Notebooks, and Workstations
• Graphics Card DDR Memory Termination
• Set Top Boxes, Digital TV’s, Printers
• Embedded Systems
• Active Bus Termination
http://onsemi.com
MARKING
DIAGRAM
DFN8
MN SUFFIX
CASE 506AA
1
A5MG
G
1
A5 = Specific Device Code
M = Date Code
G = Pb−Free Device
(Note: Microdot may be in either location)
PIN CONNECTION
ORDERING INFORMATION
Device
Package
Shipping^†
NCP51190MNTAG DFN8 3000 / Tape & Reel
(Pb−Free)
†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.
© Semiconductor Components Industries, LLC, 2013
1
May, 2013 − Rev. 0
Publication Order Number:
NCP51190/D