Datasheet
50
55
65
75
80
85
95
100
0 10 30 4020 50
60
70
90
h - Efficiency - %
I
O
- Output Current - A
3.3
V
OUT
(V)
3.3
2.5
1.8
1.5
1.2
1.0
0.7
2.5
1.8
1.5
1.2
1.0
0.7
2
4
8
10
12
14
0 10 3020
I
O
- Output Current - A
V
O
- Ouptut Voltage Ripple - V
PP
(mV)
1.8
V
OUT
(V)
3.3
2.5
1.8
1.5
1.2
1.0
40 50
3.3
1.0
1.2
2.5
1.5
6
0 10 30 4020 50
0
2
4
6
8
12
P
DISS
- Power Dissipation - W
I
O
- Output Current - A
0.7
1.2
1.8
2.5
3.3
V
OUT
(V)
3.3
2.5
1.8
1.2
0.7
10
20
30
50
60
80
90
I
O
- Output Current - A
40
70
Natural
Convection
400 LFM
200 LFM
100 LFM
V
O
= 3.3 V
T
A
- Ambient Temperature - °C
0 10 30 4020 50
400 LFM
200 LFM
100 LFM
Nat conv
Airflow
20
30
50
60
80
90
T
A
- Ambient Temperature - °C
I
O
- Output Current - A
40
70
Natural
Convection
400 LFM
200 LFM
100 LFM
400 LFM
200 LFM
100 LFM
Nat conv
V
O
= 1.2 V
0 10 30 4020 50
Airflow
PTH08T250W
www.ti.com
SLTS278G –NOVEMBER 2010–REVISED MARCH 2009
TYPICAL CHARACTERISTICS
(1) (2)
CHARACTERISTIC DATA ( V
I
= 12 V)
EFFICIENCY OUTPUT RIPPLE POWER DISSIPATION
vs vs vs
LOAD CURRENT LOAD CURRENT LOAD CURRENT
Figure 1. Figure 2. Figure 3.
AMBIENT TEMPERATURE AMBIENT TEMPERATURE
vs vs
LOAD CURRENT LOAD CURRENT
Figure 4. Figure 5.
(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 1, Figure 2, and Figure 3.
(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
and the direction of airflow from pin 10 to pin 22. For surface mount packages (AS and AZ suffix), multiple vias must be utilized. Please
refer to the mechanical specification for more information. Applies to Figure 4 and Figure 5.
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