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PDF NCV51199 Data sheet ( Hoja de datos )

Número de pieza NCV51199
Descripción Termination Regulator
Fabricantes ON Semiconductor 
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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

1 page




NCV51199 pdf
NCP51199, NCV51199
TYPICAL CHARACTERISTICS
0.915
0.910
PVCC = 1.8 V, VCC = 5 V
0.905
0.900
0.895
0.890
0.885
0.880
−50 −25 0 25 50 75 100
TEMPERATURE (°C)
Figure 2. Output Voltage vs. Temperature
0.770
0.765
PVCC = 1.5 V, VCC = 5 V
0.760
0.755
0.750
0.745
0.740
0.735
0.730
125 −50 −25 0 25 50 75 100 125
TEMPERATURE (°C)
Figure 3. Output Voltage vs. Temperature
0.60
0.55
0.50
VCC = 5 V
0.45
Enabled
0.40
0.35 Shutdown
0.30
0.25
0.20
−50
−25 0 25 50 75 100
TEMPERATURE (°C)
Figure 4. Shutdown Threshold vs.
Temperature
125
3.0
PVCC = 1.8 V, VCC = 5 V
2.5
2.0
1.5
1.0
0.5
0
−50 −25 0 25 50 75 100 125
TEMPERATURE (°C)
Figure 6. PVCC Current vs. Temperature
1.2
PVCC = 1.8 V, VCC = 5 V
1.0
0.8
0.6
0.4
0.2
−50
−25 0 25 50 75 100
TEMPERATURE (°C)
Figure 5. VCC Current vs. Temperature
125
3.5
3.0
2.5
2.0
1.5
1.0
PVCC = 1.8 V, VCC = 5 V
PVCC = 1.5 V, VCC = 5 V
0.5
0
−50 −25 0 25 50 75 100 125
TEMPERATURE (°C)
Figure 7. Source Current Limits vs.
Temperature
http://onsemi.com
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