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LTM4608 Datasheet, PDF (18/24 Pages) Linear Technology – Low VIN, 8A DC/DC μModuleTM with Tracking, Margining, and Frequency Synchronization
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LTM4608
APPLICATIONS INFORMATION
9
8
7
6
5
4
3
2
400LFM
1
200LFM
0LFM
0
40 50 60 70 80 90 100 110 120
AMBIENT TEMPERATURE (°C)
4608 F15
Figure 15. No Heat Sink with 5VIN to 3.3VOUT
9
8
7
6
5
4
3
2
400LFM
1
200LFM
0LFM
0
40 50 60 70 80 90 100 110 120
AMBIENT TEMPERATURE (°C)
4608 F16
Figure 16. BGA Heat Sink with 5VIN to 3.3VOUT
Table 4. 1.5V Output
DERATING CURVE
Figures 9, 11
Figures 9, 11
Figures 9, 11
Figures 10, 12
Figures 10, 12
Figures 10, 12
Table 5. 3.3V Output
DERATING CURVE
Figure 15
Figure 15
Figure 15
Figure 16
Figure 16
Figure 16
VIN (V)
3.3, 5
3.3, 5
3.3, 5
3.3, 5
3.3, 5
3.3, 5
VIN (V)
5
5
5
5
5
5
POWER LOSS CURVE
Figures 7, 8
Figures 7, 8
Figures 7, 8
Figures 7, 8
Figures 7, 8
Figures 7, 8
AIR FLOW (LFM)
0
200
400
0
200
400
HEAT SINK
None
None
None
BGA Heat Sink
BGA Heat Sink
BGA Heat Sink
POWER LOSS CURVE
Figure 8
Figure 8
Figure 8
Figure 8
Figure 8
Figure 8
AIR FLOW (LFM)
0
200
400
0
200
400
HEAT SINK
None
None
None
BGA Heat Sink
BGA Heat Sink
BGA Heat Sink
θJA (°C/W)
25
21
20
23.5
22
22
θJA (°C/W)
25
21
20
23.5
22
22
4608f
18
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