IR3843WMPBF Datasheet, PDF (10/34 Pages) International Rectifier – HIGHLY EFFICIENT INTEGRATED 2A SYNCHRONOUS BUCK REGULATOR

PD-97507
IR3843WMPbF
Typical Efficiency and Power Loss Curves
Vin=12V, Vcc=5V, Io=0.2A-2A, 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.
Vout (V) L (uH)
P/N
0.9
2.2 IHLP2525EZ-01 2.2uH
1
2.2 IHLP2525EZ-01 2.2uH
1.1
2.2 IHLP2525EZ-01 2.2uH
1.2
2.2 IHLP2525EZ-01 2.2uH
1.5
3.3 IHLP2525EZ-01 3.3uH
1.8
3.3 IHLP2525EZ-01 3.3uH
2.5
4.7 IHLP2525EZ-01 4.7uH
3.3
4.7 IHLP2525EZ-01 4.7uH
5
5.6 IHLP2525EZ-01 5.6uH
DCR
(mΩ)
13
13
13
13
19.9
19.9
28.9
28.9
32.7
96
94
92
90
88
86
84
82
80
78
76
74
72
70
68
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
Iout (A)
0.9V 1V 1.1V 1.2V 1.5V 1.8V 2.5V 3.3V 5V
0.55
0.5
0.45
0.4
0.35
0.3
0.25
0.2
0.15
0.1
0.05
0.2
0.4
0.9V
0.6 0.8
1
1.2
1.4
1.6
1.8
2
Iout (A)
1V 1.1V 1.2V 1.5V 1.8V 2.5V 3.3V 5V
10
Rev 10.0