Datasheet

LTM4600HV
16
4600hvfc
Figure 17. BGA Heatsink
AMBIENT TEMPERATURE (°C)
50
MAXIMUM LOAD CURRENT (A)
70
4600hv F19.eps
60 80 90
400 LFM
200 LFM
0 LFM
10
9
8
7
6
5
4
V
IN
= 24V
V
OUT
= 3.3V TEMPERATURE
DE-RATING
Figure 19. BGA Heatsink
AMBIENT TEMPERATURE (°C)
50 70
4600hv F18.eps
60 80 90
V
IN
= 24V
V
OUT
= 3.3V TEMPERATURE
DE-RATING
400 LFM
200 LFM
0 LFM
MAXIMUM LOAD CURRENT (A)
10
8
6
4
0
2
Figure 18. No Heatsink
APPLICATIO S I FOR ATIO
WUU
U
AMBIENT TEMPERATURE (°C)
40 50
MAXIMUM LOAD CURRENT (A)
70
4600hv F17
60 80 90 100
V
IN
= 12V
V
OUT
= 3.3V
400 LFM
200 LFM
0 LFM
10
9
8
7
6
5
4
Table 4. 3.3V Output
DERATING CURVE V
IN
(V) POWER LOSS CURVE AIR FLOW (LFM) HEATSINK θ
JA
(°C/W)
Figures 16, 18 12, 24 Figure 15 0 None 15.2
Figures 16, 18 12, 24 Figure 15 200 None 14.6
Figures 16, 18 12, 24 Figure 15 400 None 13.4
Figures 17, 19 12, 24 Figure 15 0 BGA Heatsink 13.9
Figures 17, 19 12, 24 Figure 15 200 BGA Heatsink 11.1
Figures 17, 19 12, 24 Figure 15 400 BGA Heatsink 10.5
Table 3. 1.5V Output
DERATING CURVE V
IN
(V) POWER LOSS CURVE AIR FLOW (LFM) HEATSINK θ
JA
(°C/W)
Figures 9, 11, 13 5, 12, 18 Figure 8 0 None 15.2
Figures 9, 11, 13 5, 12, 18 Figure 8 200 None 14
Figures 9, 11, 13 5, 12, 18 Figure 8 400 None 12
Figures 10, 12, 14 5, 12, 18 Figure 8 0 BGA Heatsink 13.9
Figures 10, 12, 14 5, 12, 18 Figure 8 200 BGA Heatsink 11.3
Figures 10, 12, 14 5, 12, 18 Figure 8 400 BGA Heatsink 10.25