Datasheet

LTM4628
23
4628fe
For more information www.linear.com/LTM4628
APPLICATIONS INFORMATION
Figure 11. 1V Power Loss
Figure 12. 3.3V Power Loss
Figure 13. 5V to 1V Derating
Curves, No Heat Sink
Figure 14. 12V to 1V Derating
Curves, No Heat Sink
OUTPUT CURRENT (A)
0
POWER LOSS (W)
2
3
4
16
4628 F11
1
0
2 4 6 8 10 12 14
6
5
24V TO 1V
12V TO 1V
5V TO 1V
OUTPUT CURRENT (A)
0
POWER LOSS (W)
4
5
6
16
4628 F12
3
2
0
4 8 12 142 6 10
1
8
7
24V TO 3.3V POWER LOSS
12V TO 3.3V POWER LOSS
5V TO 3.3V POWER LOSS
AMBIENT TEMPERATURE (°C)
0
CH1 AND CH2 CMBINED LOAD CURRENT
8
10
12
120
4628 F14
6
4
0
20 40 60 80 100
2
16
14
0 LFM
200 LFM
400 LFM
AMBIENT TEMPERATURE (°C)
0
CH1 AND CH2 COMBINED LOAD CURRENT
8
10
12
120
4628 F13
6
4
0
40 80 10020 60
2
16
14
0 LFM
200 LFM
400 LFM
Figure 15. 24V to 1V Derating
Curves, No Heat Sink
Figure 16. 5V to 1V Derating
Curves, with BGA Heat Sink
AMBIENT TEMPERATURE (°C)
0
CH1 AND CH2 COMBINED LOAD CURRENT
8
10
12
120
4628 F15
6
4
0
20 40 60 80
100
2
16
14
0 LFM
200 LFM
400 LFM
AMBIENT TEMPERATURE (°C)
0
CH1 AND CH2 COMBINED LOAD CURRENT
8
10
12
120
4628 F16
6
4
0
20 40 60 80
100
2
16
14
0 LFM
200 LFM
400 LFM
Figure 17. 12V to 1V Derating
with BGA Heat Sink
Figure 18. 24V to 1V Derating
Curves with BGA Heat Sink
AMBIENT TEMPERATURE (°C)
0
CH1 AND CH2 COMBINED LOAD CURRENT
8
10
12
120
4628 F17
6
4
0
20 40 60 80
100
2
16
14
0 LFM
200 LFM
400 LFM
AMBIENT TEMPERATURE (°C)
0
CH1 AND CH2 COMBINED LOAD CURRENT
8
10
12
120
4628 F18
6
4
0
20 40 60 80
100
2
16
14
0 LFM
200 LFM
400 LFM
Figure 19. 5V to 3.3V Derating
Curves, No Heat Sink
AMBIENT TEMPERATURE (°C)
0
CH1 AND CH2 COMBINED LOAD CURRENT
8
10
12
120
4628 F19
6
4
0
20 40 60 80
100
2
16
14
0 LFM
200 LFM
400 LFM