Datasheet

L5973AD Additional features and protections
Doc ID 9552 Rev 9 15/22
Figure 9. Junction temperature vs output
current
Figure 10. Junction temperature vs output
current
20
30
40
50
60
70
80
90
100
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
Io(A)
Tj (°C)
Vo=2 . 5
V
Vo=3. 3V
Vo=1. 8V
Vi n=5V
Tamb=25°C
20
30
40
50
60
70
80
90
100
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
Io(A)
Tj (°C)
Vo=2 . 5
V
Vo=3. 3V
Vo=1. 8V
Vi n=5V
Tamb=25°C
20
30
40
50
60
70
80
90
100
110
0.2 0. 4 0.6 0. 8 1 1.2 1. 4 1.6 1. 8 2
Io(A)
Tj ( C)
Vi n=12V
Tamb=25°C
Vo=3 . 3 V
Vo= 5V
Vo=2 . 5 V
20
30
40
50
60
70
80
90
100
110
0.2 0. 4 0.6 0. 8 1 1.2 1. 4 1.6 1. 8 2
Io(A)
Tj ( C)
Vi n=12V
Tamb=25°C
Vo=3 . 3 V
Vo= 5V
Vo=2 . 5 V
Figure 11. Efficiency vs output current Figure 12. Efficiency vs output current
65
70
75
80
85
90
95
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
Io(A)
Efficiency (%)
Vin=5V
Vout=2.5V
Vout=3.3V
Vout=1.8V
65
70
75
80
85
90
95
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
Io(A)
Efficiency (%)
Vin=5V
Vout=2.5V
Vout=3.3V
Vout=1.8V
65
70
75
80
85
90
95
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
Io(A)
Efficiency (%)
Vin=12V
Vout=3.3V
Vout=2.5V
Vout=5V
65
70
75
80
85
90
95
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
Io(A)
Efficiency (%)
Vin=12V
Vout=3.3V
Vout=2.5V
Vout=5V