64
5
10 15 20 25 30 35 40 45 50 55 60 65 70
OUTPUT POWER – WATTS
ADDC02803SC/ADDC02805SA–Typical Performance Curves
16.0
15.5
15.0
14.5
14.0
13.5
13.0
82
80
78
76
28V
40V
18V
ADDC02803SC
74
72
ADDC02805SA
V
V
= 28V
= 5V
= +25؇C
IN
O
70
68
T
C
30
35
40
45
50
55
60
65
70
80
90 100
10
20
30
40
50
60
70
80
90
100
OUTPUT POWER – Watts
MAXIMUM POWER OUTPUT – Watts
Figure 1. Efficiency vs. Line and Load at +25°C
Figure 4. Low Line Dropout vs. Load at +90°C Case
(ADDC02805SA)
Temperature
80
5.100
5.050
5.000
4.950
4.900
78
18V
28V
76
40V
74
72
70
68
66
64
40 45 50 55 60 65
OUTPUT POWER – Watts
5
10 15 20 25 30 35
70
–55
–35
–15
5
25
45
65
85
105
125
T
CASE
Figure 2. Efficiency vs. Line and Load at +25°C
Figure 5. Output Voltage vs. Case Temperature (°C)
(ADDC02803SC)
(ADDC02805SA)
81
3.340
3.320
3.300
ADDC02805SA
80
79
ADDC02803SC
78
77
3.280
3.260
76
75
–55
–35
–15
5
25
–
45
65
85
–55 –45 –35 –25 –15 –5
5
15 25 35 45 55 65 75 85 95
T
T
؇C
CASE
CASE
Figure 3. Efficiency vs. Case Temperature (°C)
Figure 6. Output Voltage vs. Case Temperature (°C)
(at Nominal VIN, 75% Max Load)
(ADDC02803SC)
–4–
REV. A
ADI [ ADI ]
