Datasheet

L5987 Application information
Doc ID 14972 Rev 3 35/41
Figure 29. Load regulation Figure 30. Line regulation
Figure 31. Load transient:
from 0.4 A to 3 A
Figure 32. Soft-start
Figure 33. Short-circuit behavior
0
0.2
0.4
0.6
0.8
1
1.2
00.511.522.53
I
O
[A]
Δ
V
FB
/V
FB
[%]
V
CC
=12V
V
CC
=5V
0
0.2
0.4
0.6
0.8
1
2 4 6 8 10 12 14 16 1
8
V
CC
[V]
Δ
V
FB
/V
FB
[%]
I
O
=1A
I
O
=2A
I
O
=3A
V
OUT
100mV/div
AC coupled
I
L
1A/div
Time base 100us/div
C
OUT
=47uF
L=3.8uH
F
SW
=520k
V
OUT
100mV/div
AC coupled
I
L
1A/div
Time base 100us/div
C
OUT
=47uF
L=3.8uH
F
SW
=520k
I
L
1A/div
V
OUT
1V/div
Time base 1ms/div
I
L
1A/div
V
OUT
0.5V/div
Time base 1ms/div
I
L
1A/div
V
OUT
1V/div
Time base 1ms/div
I
L
1A/div
V
OUT
0.5V/div
Time base 1ms/div
I
L
1A/div
OUT 10V/div
V
OUT
1V/div
SHORTED OUTPUT
Time base 5ms/div
I
L
1A/div
OUT 10V/div
V
OUT
0.5V/div
SHORTED OUTPUT
Time base 5ms/div
I
L
1A/div
OUT 10V/div
V
OUT
1V/div
SHORTED OUTPUT
Time base 5ms/div
I
L
1A/div
OUT 10V/div
V
OUT
0.5V/div
SHORTED OUTPUT
Time base 5ms/div