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AND8079 Datasheet(PDF) 6 Page - ON Semiconductor

Part No. AND8079
Description  A Low Cost DDR Memory Power Supply Using the NCP1571 Synchronous Buck Converter and a LM358 Based Linear Voltage Regulator
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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 6 page
background image
AND8079/D
http://onsemi.com
6
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.440
2.445
2.450
2.455
2.460
2.465
2.470
2.475
Figure 4. Output Voltage vs. Vdd Load
Figure 5. Vdd Voltage vs. Vdd Load
Figure 6. Vtt and Vref vs. Vdd Load
1.214
1.216
1.218
1.220
1.222
1.224
1.226
1.228
1.230
1.232
1.234
0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
Figure 7. Output Voltage vs. Input Voltage
Figure 8. Efficiency vs. Vdd Load
Figure 9. Efficiency vs. Input Voltage
0.60
0.65
0.70
0.75
0.80
0.85
0.90
0
1
2
3456
7
8
0.75
0.76
0.77
0.78
0.79
0.80
0.81
0.82
3
4
5
6789
10
0.74
INPUT VOLTAGE (V)
EFFICIENCY
Vdd LOAD CURRENT (A)
INPUT VOLTAGE (V)
Vdd LOAD (A)
EFFICIENCY
Vdd
Vtt
Vref
Vdd LOAD (A)
Vdd LOAD (A)
0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
Vdd
0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
Vdd
JVtt
YVref
JVtt
YVref




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