Datasheet

0
10
30
20
40
50
60
70
80
V -OutputVoltageRipple-mV
O PP
0 1 2 3 4
5
I -OutputCurrent- A
O
V =3.3V
O
V =5V
O
V =12V
O
V =15V
O
V =22V
O
0
1
2
3
4
5
0 1 2 3 4
5
I
O
-OutputCurrent- A
6
7
P -PowerDissipation-W
D
V =22V
O
V =15V
O
V =3.3V
O
V =5V
O
V =12V
O
0 1 2 3 4
5
40
45
50
55
60
65
70
75
80
85
90
95
100
Efficiency-%
I -OutputCurrent- A
O
V =3.3V
O
V =5V
O
V =12V
O
V =22V
O
V =15V
O
20
30
40
50
60
70
80
90
0 1 2 3 4
5
I -OutputCurrent- A
O
200LFM
Natconv
Airflow
V
O
=5V
TemperatureDerating- C°
100LFM
20
30
40
50
60
70
80
90
0 1 2 3 4
5
I -OutputCurrent- A
O
200LFM
100LFM
Natconv
Airflow
V
O
=15V
TemperatureDerating- C°
20
30
40
50
60
70
80
90
0 1 2 3 4
5
I -OutputCurrent- A
O
200LFM
100LFM
Natconv
TemperatureDerating- C°
Airflow
V
O
=12V
20
30
40
50
60
70
80
90
0 1 2 3 4
I -OutputCurrent- A
O
Airflow
V
O
=22V
Natconv
100LFM
200LFM
TemperatureDerating- C°
PTN78020W
PTN78020H
www.ti.com SLTS228C – DECEMBER 2004– REVISED AUGUST 2011
TYPICAL CHARACTERISTICS (32-V INPUT)
(1) (2)
EFFICIENCY OUTPUT VOLTAGE RIPPLE POWER DISSIPATION
vs vs vs
OUTPUT CURRENT OUTPUT CURRENT OUTPUT CURRENT
Figure 17. Figure 18. Figure 19.
TEMPERATURE DERATING TEMPERATURE DERATING TEMPERATURE DERATING
vs vs vs
OUTPUT CURRENT OUTPUT CURRENT OUTPUT CURRENT
Figure 20. Figure 21. Figure 22.
TEMPERATURE DERATING
vs
OUTPUT CURRENT
Figure 23.
(1) The electrical characteristic data has been developed from actual products tested at 25°C. This data is considered typical for the
converter. Applies to Figure 17, Figure 18, and Figure 19.
(2) The temperature derating curves represent the conditions at which internal components are at or below the manufacturer's maximum
operating temperatures. Derating limits apply to modules soldered directly to a 100 mm x 100 mm double-sided PCB with 2 oz. copper.
For surface mount packages (AS and AZ suffix), multiple vias (plated through holes) are required to add thermal paths around the power
pins. Please refer to the mechanical specification for more information. Applies to Figure 20 through Figure 23.
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