Datasheet

L4973 Typical characteristics
19/28
Figure 33. Power dissipation vs. output
voltage (device only)
Figure 34. Pulse by pulse limiting
current vs.
junction temperature
Figure 35. Load transient Figure 36. Line transient
0 5 15 20 V
O
(V)10 25 30
0
0.5
1.0
1.5
Pdiss
(W)
2.0
2.5
3.0
D97IN648
I
O
=3.5A
I
O
=3A
I
O
=1A
I
O
=2A
I
O
=2.5A
V
CC
= 35V
f
sw
= 100KHz
-40 -20 60 80 T
j(
˚C
)
0 12020 40 100
4.2
4.4
4.6
4.8
Ilim
(A)
5
5.2
D97IN652
Vcc=35
1
2
I
O
(A)
3
2
1
V
O
(mV)
100
0
-100
D97IN649
T
T
200μs/DIV
V
CC
= 35V
f
sw
= 100KHz
2
1
D97IN650
V
CC
(V)
30
20
10
V
O
(mV)
100
0
-100
1ms/DIV
I
O
= 1A
f
sw
= 100KHz