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
120
50 60 70
90
40
80
100 110
40
80
100 110
120
50 60 70
90
120
50 60 70
90
AMBIENT TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
4146 F38
4146 F36
4146 F37
Figure 38. 36VIN to 1.5VOUT No Heat
Sink, fSW = 315kHz at Full Load
Figure 36. 12VIN to 1.5VOUT No Heat
Sink, fSW = 315kHz at Full Load
Figure 37. 24VIN to 1.5VOUT No Heat
Sink, fSW = 315kHz at Full Load
10
9
10
9
8
7
6
5
4
3
2
1
0
8
7
6
5
4
3
2
400LFM
400LFM
200LFM
0LFM
200LFM
1
0LFM
0
40
80
100 110
120
50 60 70
90
40
80
100 110
120
50 60 70
90
AMBIENT TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
4146 F39
4146 F40
Figure 39. 6VIN to 1.5VOUT, with
Heat Sink, fSW = 315kHz at Full Load
Figure 40. 12VIN to 1.5VOUT, with
Heat Sink, fSW = 315kHz at Full Load
10
10
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
400LFM
200LFM
0LFM
400LFM
200LFM
0LFM
40
80
100 110
40
80
100 110
120
50 60 70
90
120
50 60 70
90
AMBIENT TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
4146 F41
4146 F42
Figure 41. 24VIN to 1.5VOUT, with
Heat Sink, fSW = 315kHz at Full Load
Figure 42. 36VIN to 1.5VOUT with
Heat Sink, fSW = 315kHz at Full Load
4641f
43
Linear [ Linear ]
