LMZ22005_15 Datasheet, PDF (10/34 Pages) Texas Instruments – 5A SIMPLE SWITCHER Power Module With 20-V Maximum Input Voltage

LMZ22005
SNVS686J – MARCH 2011 – REVISED AUGUST 2015
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Typical Characteristics (continued)
Unless otherwise specified, the following conditions apply: V_IN = 12 V; C_IN = 2 x 10 μF + 1-μF X7R Ceramic; C_O = 220-μF
Specialty Polymer + 10-µF Ceramic; T_A = 25°C for waveforms. Efficiency and dissipation plots marked with * have cycle
skipping at light loads resulting is slightly higher output ripple – See Design Steps section.
90
6
20 Vin
12 Vin
80
5
9 Vin
6 Vin
70
4
60
3
50
40
30
0
6 Vin
9 Vin
12 Vin
20 Vin
1
2
3
4
5
OUTPUT CURRENT (A)
2
1
0
0
1
2
3
4
5
OUTPUT CURRENT (A)
Figure 25. Efficiency 2.5-V Output at 85°C Ambient
90
80
70
60
50
40
30
0
6 Vin
9 Vin
12 Vin
20 Vin
1
2
3
4
5
OUTPUT CURRENT (A)
Figure 26. Dissipation 2.5-V Output at 85°C Ambient
6
20 Vin
12 Vin
5
9 Vin
6 Vin
4
3
2
1
0
0
1
2
3
4
5
OUTPUT CURRENT (A)
Figure 27. Efficiency 1.8-V Output at 85°C Ambient
80
70
60
50
40
30
20
0
6 Vin
9 Vin
12 Vin
20 Vin
1
2
3
4
5
OUTPUT CURRENT (A)
Figure 28. Dissipation 1.8-V Output at 85°C Ambient
6
20 Vin
12 Vin
5
9 Vin
6 Vin
4
3
2
1
0
0
1
2
3
4
5
OUTPUT CURRENT (A)
Figure 29. Efficiency 1.5-V Output at 85°C Ambient
Figure 30. Dissipation 1.5-V Output at 85°C Ambient
10
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