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LTM4644 Datasheet(PDF) 26 Page - Linear Technology

Part # LTM4644
Description  Dual 25A or Single 50A DC/DC 關Module Regulator with 1% DC Accuracy
PDF  36 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTM4644 Datasheet(HTML) 26 Page - Linear Technology

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LTM4650A-1
26
4650a1f
For more information www.linear.com/LTM4650A-1
APPLICATIONS INFORMATION
Table 2. 1.0V Output
DERATING CURVE
VIN (V)
POWER LOSS CURVE
AIRFLOW (LFM)
HEAT SINK
θJA (°C/W)
Figures 20, 21
5, 12
Figure 16
0
None
7
Figures 20, 21
5, 12
Figure 16
200
None
6
Figures 20, 21
5, 12
Figure 16
400
None
5.5
Figures 22, 23
5, 12
Figure 16
0
BGA Heat Sink
6.5
Figures 22, 23
5, 12
Figure 16
200
BGA Heat Sink
5
Figures 22, 23
5, 12
Figure 16
400
BGA Heat Sink
4
Table 3. 1.8V Output
DERATING CURVE
VIN (V)
POWER LOSS CURVE
AIRFLOW (LFM)
HEAT SINK
θJA (°C/W)
Figures 24, 25
5, 12
Figure 17
0
None
7
Figures 24, 25
5, 12
Figure 17
200
None
6
Figures 24, 25
5, 12
Figure 17
400
None
5.5
Figures 26, 27
5, 12
Figure 17
0
BGA Heat Sink
6.5
Figures 26, 27
5, 12
Figure 17
200
BGA Heat Sink
4
Figures 26, 27
5, 12
Figure 17
400
BGA Heat Sink
3.5
HEAT SINK MANUFACTURER
PART NUMBER
WEBSITE
Aavid Thermalloy
375424B00034G
www.aavid.com
Table 4. 3.3V Output
DERATING CURVE
VIN (V)
POWER LOSS CURVE
AIRFLOW (LFM)
HEAT SINK
θJA (°C/W)
Figures 28, 29
5, 12
Figure 18
0
None
7
Figures 28, 29
5, 12
Figure 18
200
None
6
Figures 28, 29
5, 12
Figure 18
400
None
5.5
Figures 30, 31
5, 12
Figure 18
0
BGA Heat Sink
6.5
Figures 30, 31
5, 12
Figure 18
200
BGA Heat Sink
5
Figures 30, 31
5, 12
Figure 18
400
BGA Heat Sink
4
Table 5. 5V Output
DERATING CURVE
VIN (V)
POWER LOSS CURVE
AIRFLOW (LFM)
HEAT SINK
θJA (°C/W)
Figure 32
12
Figure 19
0
None
7
Figure 32
12
Figure 19
200
None
6
Figure 32
12
Figure 19
400
None
5.5
Figure 33
12
Figure 19
0
BGA Heat Sink
6.5
Figure 33
12
Figure 19
200
BGA Heat Sink
4
Figure 33
12
Figure 19
400
BGA Heat Sink
3.5
HEAT SINK MANUFACTURER
PART NUMBER
WEBSITE
Aavid Thermalloy
375424B00034G
www.aavid.com



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