Datasheet

Application information A7986A
32/42 DocID022801 Rev 5
Figure 22. Junction temperature vs. output
current @ V
in
= 24 V
Figure 23. Junction temperature vs. output
current @ V
in
= 12 V
V
OUT
=1.8V
V
OUT
=3.3V
V
OUT
=5V
HSOPVQFN
V
IN
=24V
F
SW
=250KHz
T
AMB
=25 C
V
OUT
=1.8V
V
OUT
=3.3V
V
OUT
=5V
HSOPVQFN
V
IN
=12V
F
SW
=250KHz
T
AMB
=25 C
Figure 24. Junction temperature vs. output
current @ V
in
= 5 V
Figure 25. Efficiency vs. output current @ V
in
=
12 V
V
OUT
=1.2V
V
OUT
=1.8V
V
OUT
=3.3V
HSOPVQFN
V
IN
=5V
F
SW
=250KHz
T
AMB
=25 C
60
65
70
75
80
85
90
95
0.100 0.600 1.100 1.600 2.100 2.600 3.100
Io [A]
Eff [%]
Vin=12V
Vin=18V
Vin=24V
Vo=5.0V
FSW=250kHz
Figure 26. Efficiency vs.output current @
V
in
=5 V, V
O
= 3.3 V
Figure 27. Efficiency vs.output current @
V
in
=5 V, V
O
= 1.8 V
50
55
60
65
70
75
80
85
90
95
0.100 0.600 1.100 1.600 2.100 2.600 3.100
Io [A]
Eff [%]
Vin=5V
Vin=12V
Vin=24V
Vo=3.3V
FSW=250kHz
40
45
50
55
60
65
70
75
80
85
0.100 0.600 1.100 1.600 2.100 2.600 3.100
Io [A]
Eff [%]
Vin=5V
Vin=12V
Vin=24V
Vo=1.8V
FSW=250kHz