ADDC02808PB–Typical Performance Curves
1.0
0.5
0.0
82
28V , 150W PEAK
IN
80
40V
78
28V
18V
76
74
72
–0.5
–1.0
70
68
–55 –45 –35 –25 –15 –5
5
15 25 35 45 55 65 75 85 95
0
20
40
60
80
100 120 140 160 180 200
T
OUTPUT POWER – Watts
CASE
Figure 4. Output Voltage vs. Case Temperature (°C)
Figure 1. Efficiency vs. Line and Load at +25°C
(Load Pulsewidth of 50 ms)
79
28V , 150W PEAK
IN
79
78
78
77
77
76
100
90
2V
V
O
10
0%
10V
V
1ms
INHIBIT
–55 –45 –35 –25 –15 –5
5
15 25 35 45 55 65 75 85 95
T
CASE
Figure 2. Efficiency vs. Case Temperature (°C)
(at Nominal VIN, 75% Max Load, Load Pulsewidth
of 50 ms)
Figure 5. Output Voltage Transient During Turn-On with
0.1 A Load Displaying Soft Start When Supply Is Enabled
16.0
15.5
15.0
14.5
100
90
100mV
V
O
14.0
13.5
13.0
10
0%
100s
140
150
160
170
180
190
200
PEAK OUTPUT POWER – Watts
Figure 3. Low Line Dropout vs. Load at 90°C Case
Temperature (Load Pulsewidth of 50 ms)
Figure 6. Output Voltage Transient Response to
a 1 A to 25 A Step Change in Load, di/dt = 12 A/µs,
with 1,000 µF Load Capacitance (RESR = 10 mΩ)
REV. A
–4–
ADI [ ADI ]
