Typical Characteristics
PT3663—48V
30-A Dual Output Isolated
DC/DC Converter
SLTS181 OCTOBER 2002
PT3663 (V1/V2 =3.3V/1.8V); Vin =48V (See Notes A & B)
Efficiency vs I1out; I2out @1A, 3A, and 6A
Power Dissipation vs (Io1 + Io2)
90
20
16
12
8
85
I2 out
6
80
75
70
3
1
4
0
0
3
6
9
12
15
0
6
12
18
24
30
I1 out (A)
Io1 + Io2 (A)
Safe Operating Area: (Io1 + Io2)
Efficiency vs I1out; I2out @9A, 12A, and 15A
90
85
80
75
70
90
80
70
60
50
40
30
20
Airflow
I2 out
300LFM
200LFM
100LFM
Nat Conv
9
12
15
0
5
10
15
20
25
30
0
3
6
9
12
15
Io1 + Io2 (A)
Iout (A)
Cross Regulation: V1out vs I2out @I1out =1A
3.36
3.34
3.32
3.3
3.28
3.26
3.24
0
3
6
9
12
15
I2 out (A)
Cross Regulation: V2out vs I1out @I2out =1A
1.82
1.81
1.8
1.79
1.78
0
3
6
9
12
15
I2 out (A)
Note A: All Characteristic data in the above graphs has been developed from actual products tested at 25°C. This data is considered typical data for the converter.
Note B: SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating temperatures.
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