Linear Technology EN55022B, Manual

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LTM4612
19
4612fc
For more information www.linear.com/LTM4612
APPLICATIONS INFORMATION
Table 3. 12V and 15V Outputs
DERATING CURVE V
IN
(V) POWER LOSS CURVE AIR FLOW (LFM) HEAT SINK
θ
JA
(°C/W)
Figures 11, 13, 15 24, 36 Figure 9 0 None 13
Figures 11, 13, 15 24, 36 Figure 9 200 None 9.3
Figures 11, 13, 15 24, 36 Figure 9 400 None 8.3
Figures 12, 14, 16 24, 36 Figure 9 0 BGA Heat Sink 12.2
Figures 12, 14, 16 24, 36 Figure 9 200 BGA Heat Sink 8.6
Figures 12, 14, 16 24, 36 Figure 9 400 BGA Heat Sink 7.7
Table 4. 5V Output
DERATING CURVE V
IN
(V) POWER LOSS CURVE AIR FLOW (LFM) HEAT SINK
θ
JA
(°C/W)
Figure 11 36 Figure 10 0 None 14.9
Figure 11 36 Figure 10 200 None 11.1
Figure 11 36 Figure 10 400 None 10
Figure 12 36 Figure 10 0 BGA Heat Sink 14
Figure 12 36 Figure 10 200 BGA Heat Sink 10.4
Figure 12 36 Figure 10 400 BGA Heat Sink 9.3
Heat Sink Manufacturer
Wakefield Engineering Part No: LTN20069 Phone: 603-635-2800