LTM4641
APPLICATIONS INFORMATION—THERMAL CONSIDERATIONS AND
OUTPUT CURRENT DERATING
10
9
8
7
6
5
4
3
2
1
0
10
9
8
7
6
5
4
3
2
1
0
10
9
8
7
6
5
4
3
2
1
0
400LFM
200LFM
0LFM
400LFM
200LFM
0LFM
400LFM
200LFM
0LFM
40
80
100 110
40
80
100 110
40
80
100 110
120
50 60 70
90
120
50 60 70
90
120
50 60 70
90
AMBIENT TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
4146 F27
4146 F28
4146 F29
Figure 27. 6VIN to 3.3VOUT No Heat
Sink, fSW = 360kHz at Full Load
Figure 28. 12VIN to 3.3VOUT No Heat
Sink, fSW = 360kHz at Full Load
Figure 29. 24VIN to 3.3VOUT No Heat
Sink, fSW = 360kHz at Full Load
10
9
8
7
6
5
4
3
2
1
0
10
10
9
9
8
7
6
5
4
3
2
1
0
8
7
6
5
4
3
2
1
0
400LFM
200LFM
0LFM
400LFM
200LFM
0LFM
400LFM
200LFM
0LFM
40
80
100 110
40
80
100 110
40
80
100 110
120
50 60 70
90
120
50 60 70
90
120
50 60 70
90
AMBIENT TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
4146 F30
4146 F31
4146 F32
Figure 30. 36VIN to 3.3VOUT, No
Heat Sink, fSW = 360kHz at Full Load
Figure 31. 6VIN to 3.3VOUT, with
Heat Sink, fSW = 360kHz at Full Load
Figure 32. 12VIN to 3.3VOUT, with
Heat Sink, fSW = 360kHz at Full Load
10
10
10
9
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
8
7
6
5
4
3
2
400LFM
200LFM
0LFM
400LFM
200LFM
0LFM
400LFM
200LFM
1
0LFM
0
40
80
100 110
40
80
100 110
120
50 60 70
90
120
50 60 70
90
40
110
120
50 60 70 80 90 100
AMBIENT TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
4146 F33
4146 F34
4146 F35
Figure 33. 24VIN to 3.3VOUT with
Heat Sink, fSW = 360kHz at Full Load
Figure 34. 36VIN to 3.3VOUT with
Heat Sink, fSW = 360kHz at Full Load
Figure 35. 6VIN to 1.5VOUT No Heat
Sink, fSW = 315kHz at Full Load
4641f
42
Linear [ Linear ]
