Datasheet

Typical characteristics ST1S40
22/29 DocID17928 Rev 5
8 Typical characteristics
Figure 13. Efficiency vs. I
OUT
Figure 14. Efficiency vs. I
OUT
40
50
60
70
80
90
100
0.00 0.50 1.00 1.50 2.00 2.50 3.00
Efficiency [%]
Iout [A]
Vin=5V
Vo= 3.3V
Vo= 1.8V
Vo= 1.2V
40
45
50
55
60
65
70
75
80
85
90
0.00 0.50 1.00 1.50 2.00 2.50 3.00
Efficiency [%]
Iout[A]
Vin=12V
Vo= 1.8V
Vo= 1.2V
Figure 15. Efficiency vs. I
OUT
Figure 16. Overcurrent protection
40
50
60
70
80
90
100
0.00 0.50 1.00 1.50 2.00 2.50 3.00
Efficiency [%]
Iout[A]
Vin=12V
Vo= 5V
Vo= 3.3V
Figure 17. Short-circuit protection Figure 18. SO8-BW maximum I
OUT
Ta m b =6 0 de g C
Tjmax=150degC
Maximum I
OUT
according to 1.6W power dissipation
Limit with SO8-BW package