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IR3840WM Datasheet(PDF) 8 Page - International Rectifier

Part # IR3840WM
Description  HIGHLY EFFICIENT INTEGRATED 12A SYNCHRONOUS BUCK REGULATOR
PDF  34 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IR3840WM Datasheet(HTML) 8 Page - International Rectifier

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Rev 12.0
PD-97657
IR3840WMPbF
8
Typical Efficiency and Power Loss Curves
Vin=12V, Vcc=5V, Io=2A-12A, F
s=600kHz, Room Temperature, No Air Flow
The table below shows the inductors used for each of the output voltages
in the efficiency measurement.
80
82
84
86
88
90
92
94
96
98
23
45
67
89
10
11
12
Load Current (A)
0.9V
1.0V
1.1V
1.2V
1.5V
1.8V
2.5V
3.3V
5.0V
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
12
345
67
8
9
10
11
12
Load Current (A)
0.9V
1.0V
1.1V
1.2V
1.5V
1.8V
2.5V
3.3V
5.0V
Vo (V)
L (uH)
P/N
DCR (mOHm)
0.9
0.3
59PR9874N
0.29
1.0
0.3
59PR9874N
0.29
1.1
0.4
59PR9875N
0.29
1.2
0.4
59PR9875N
0.29
1.5
0.5
59PR9876N
0.29
1.8
0.5
59PR9876N
0.29
2.5
0.6
MPL104-0R6
1.5
3.3
1.0
MPL105-1R0
2.3
5.0
1.0
MPL105-1R0
2.3



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