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NCV8851B Datasheet(PDF) 7 Page - ON Semiconductor

Part # NCV8851B
Description  Automotive Grade Synchronous Buck Controller
Download  18 Pages
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCV8851B Datasheet(HTML) 7 Page - ON Semiconductor

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NCV8851B
http://onsemi.com
7
TYPICAL CHARACTERISTICS
(TA = +25°C, VIN = 13.2 V, ROSC = 51.1 kW, unless otherwise noted)
96%
97%
98%
99%
100%
101%
102%
−50
0
50
100
150
Ambient Temperature (°C)
170 kHz
360 kHz
500 kHz
20
25
30
35
40
45
50
55
60
65
70
−50
0
50
100
150
Ambient Temperature (°C)
GH to GL
GL to GH
98%
100%
102%
104%
106%
108%
−50
0
50
100
150
Ambient Temperature (°C)
99.50%
99.75%
100.00%
100.25%
100.50%
0.00
5.00
10.00
15.00
20.00
LDO Load Current (mA)
0.1
1
10
100
1000
0
5
10
15
20
LDO Load Current (mA)
UNSTABLE
UNSTABLE
(0.1uF only)
STABLE
50
60
70
80
90
100
110
120
130
−50
0
50
100
150
Ambient Temperature (°C)
93%
0
20
40
60
80
100
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Load Current (A)
Figure 12. Oscillator Frequency
vs. Temperature
Figure 13. Non−Overlap Delay vs.
Temperature
Figure 14. GH Minimum Pulse
Width vs. Temperature
Figure 15. LDO Load Regulation
Figure 16. LDO Stability Region
Figure 17. LDO Dropout Voltage vs.
Temperature
Figure 18. Efficiency vs. Load Cur-
rent 5 V, 170 kHz Demo Board


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