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NCV51199 fiches techniques PDF

ON Semiconductor - Termination Regulator

Numéro de référence NCV51199
Description Termination Regulator
Fabricant ON Semiconductor 
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NCV51199 fiche technique
NCP51199, NCV51199
DDR 2-Amp Source / Sink
VTT Termination Regulator
The NCP/NCV51199 is a linear regulator designed to supply a
regulated VTT termination voltage for DDR−2 and DDR−3 memory
applications. The regulator is capable of actively sourcing and sinking
±2 A peak currents for DDR−2, and DDR−3 up to ±1.5 A while
regulating the VTT output voltage to within ±10 mV. The output
termination voltage is regulated to track VDDQ / 2 by two external
voltage divider resistors connected to the PVCC, GND, and VREF pins.
The NCP/NCV51199 incorporates a high−speed differential
amplifier to provide ultra−fast response to line and load transients.
Other features include source/sink current limiting, soft−start and
on−chip thermal shutdown protection.
Features
Supports DDR−2 VTT Termination to ±2 A, DDR−3 to ±1.5 A (peak)
Stable with 10 mF Ceramic Capacitance on VTT Output
Integrated Power MOSFETs
High Accuracy VTT Output at Full−Load
Fast Transient Response
Built−in Soft−Start
Shutdown for Standby or Suspend Mode
Integrated Thermal and Current−Limit Protection
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
Typical Applications
SDRAM Termination Voltage for DDR−2 / DDR−3
Motherboard, Notebook, and VGA Card Memory Termination
Set Top Box, Digital TV, Printers
http://onsemi.com
MARKING
DIAGRAM
8
8
1
SOIC8−NB EP
PD SUFFIX
CASE 751BU
XXXXXX
ALYW
G
1
XXXXXX = Specific Device Code
A = Assembly Location
L = Wafer Lot
Y = Year
WW = Work Week
G = Pb−Free Package
PIN CONNECTION
1
PVCC
8
NC
GND
VREF
VTT
SOIC−8 EP
NC
VCC
NC
ORDERING INFORMATION
See detailed ordering, marking and shipping information in the
package dimensions section on page 6 of this data sheet.
© Semiconductor Components Industries, LLC, 2014
March, 2014 − Rev. 2
1
Publication Order Number:
NCP51199/D

PagesPages 7
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