NCP51199 Datasheet, PDF (1/7 Pages) ON Semiconductor – DDR 2-Amp Source / Sink Termination Regulator

NCP51199, NCV51199
DDR 2-Amp Source / Sink
V_TT Termination Regulator
The NCP/NCV51199 is a linear regulator designed to supply a
regulated V_TT 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 V_TT output voltage to within ±10 mV. The output
termination voltage is regulated to track V_DDQ / 2 by two external
voltage divider resistors connected to the PV_CC, GND, and V_REF 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 V_TT Termination to ±2 A, DDR−3 to ±1.5 A (peak)
• Stable with 10 mF Ceramic Capacitance on V_TT Output
• Integrated Power MOSFETs
• High Accuracy V_TT 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
V_TT
NC
V_CC
NC
SOIC−8 EP
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
1
March, 2014 − Rev. 2
Publication Order Number:
NCP51199/D