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IR3870MBF Datasheet(PDF) 8 Page - International Rectifier

Part # IR3870MBF
Description  10A HIGHLY INTEGRATED WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
PDF  20 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IR3870MBF Datasheet(HTML) 8 Page - International Rectifier

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IR3870MBF
TYPICAL OPERATING DATA (25oC)
(Circuit of Figure 15, VCC = 3.3V, V5 = 5V, V
IN = 12.6V, F = 500kHz Unless otherwise noted)
Figure 5. Output Voltage Regulation Vs
Output Current
Figure 7. Light load Efficiency: V
OUT = 1.1V
Figure 8. Input Power Vs Output Current
80
81
82
83
84
85
86
87
88
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
Output Current(A)
0.0
0.1
0.1
0.2
0.2
0.3
0.3
0.4
0.4
0.5
0.5
Eff: 12.6Vin
Eff: 19Vin
Ploss: 12.6Vin
Ploss: 19Vin
1.08900
1.09400
1.09900
1.10400
1.10900
1.11400
02
46
8
10
12
Output Current (A)
19Vin
12.6Vin
Figure 6. System Efficiency: V
OUT = 1.1V
80
81
82
83
84
85
86
87
88
89
90
02
46
8
10
12
Output Current(A)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Eff: 12.6Vin
Eff: 19Vin
Ploss: 12.6Vin
Ploss: 19Vin
0
2
4
6
8
10
12
14
16
02468
10
12
Output Current(A)
0.000
0.010
0.020
0.030
0.040
0.050
0.060
0.070
0.080
Vin Ploss
5V PVcc Ploss
3.3V Vcc Ploss



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