Analog Devices UG-189, Руководство пользователя

Страница: 5 / 12

Evaluation Board User Guide UG-189
Rev. 0 | Page 5 of 12
TYPICAL PERFORMANCE CHARACTERISTICS
I
OUT
(A)
40
50
60
70
80
90
100
0 0.5 1.0 1.5 2.0
EF
F
IC
IEN
C
Y
(
%
)
INDUCTOR: VLF10040T-6R8N4R5
DIODE: SSB43L
V
OUT
= 5.0V
V
OUT
= 3.3V
V
OUT
= 2.5V
V
OUT
= 1.8V
V
OUT
= 1.5V
09
31
5-
00
3
Figure 3. ADP2302 Efficiency, V
IN
= 12 V
0.20
–0.20
0.15
–0.15
0.10
–0.10
0.05
–0.05
0
LI
N
E
R
E
G
U
L
A
TI
O
N
(
%
)
V
IN
(V)
5 8 11 14 17 20
09
31
5-
00
4
Figure 4. ADP2302 Line Regulation, V
OUT
= 3.3 V, I
OUT
= 2 A
0.20
–0.20
0.15
–0.15
0.10
–0.10
0.05
–0.05
0
LOA
D
R
E
G
U
L
A
TION
(%
)
I
OUT
(A)
0 0.5 1.0 1.5 2.0
09
31
5-
00
5
Figure 5. ADP2302 Load Regulation, V
OUT
= 3.3 V, V
IN
= 12 V
I
OUT
(A)
40
50
60
70
80
90
100
0 0.5 1.0 2.0 3.0 1.5 2.5
EF
F
IC
IEN
C
Y
(%
)
INDUCTOR: VLF10040T-4R7N5R4
DIODE: SSB43L
V
OUT
= 5.0V
V
OUT
= 3.3V
V
OUT
= 2.5V
V
OUT
= 1.8V
V
OUT
= 1.5V
09
31
5-
00
6
Figure 6. ADP2303 Efficiency, V
IN
= 12 V
0.20
–0.20
0.15
–0.15
0.10
–0.10
0.05
–0.05
0
L
INE
RE
G
UL
AT
IO
N (
%
)
V
IN
(V)
5 8 11 14 17 20
09
31
5-
00
7
Figure 7. ADP2303 Line Regulation, V
OUT
= 3.3 V, I
OUT
= 3 A
0.20
–0.20
0.15
–0.15
0.10
–0.10
0.05
–0.05
0
LOA
D
R
E
G
U
L
A
TION
(%
)
I
OUT
(A)
0 0.5 1.0 1.5 2.0 2.5 3.0
09
31
5-
00
8
Figure 8. ADP2303 Load Regulation, V
OUT
= 3.3 V, V
IN
= 12 V