ltm4619 Linear Technology Corporation, ltm4619 Datasheet - Page 15

• Manufacturer Part Number: ltm4619
• Description: Dual, 26vin, 4a Dc/dc ?module Regulator
• Manufacturer: Linear Technology Corporation

APPLICATIONS INFORMATION
Table 2. 1.5V Output
DERATING CURVE
Figures 9, 11
Figures 9, 11
Figures 9, 11
Figures 10, 12
Figures 10, 12
Figures 10, 12
Table 3. 3.3V Output
DERATING CURVE
Figures 13, 15
Figures 13, 15
Figures 13, 15
Figures 14, 16
Figures 14, 16
Figures 14, 16
HEATSINK MANUFACTURER
Aavid Thermalloy
3.0
2.5
2.0
1.5
1.0
0.5
0
Figure 7. Power Loss at 1.5V Output
0
2
LOAD CURRENT (A)
V
V
12, 24
12, 24
12, 24
12, 24
12, 24
12, 24
6, 12
6, 12
6, 12
6, 12
6, 12
6, 12
IN
IN
(V)
(V)
4
PART NUMBER
375424B00034G
POWER LOSS CURVE
POWER LOSS CURVE
6
6V LOSS
12V LOSS
4619 F07
Figure 7
Figure 7
Figure 7
Figure 7
Figure 7
Figure 7
Figure 8
Figure 8
Figure 8
Figure 8
Figure 8
Figure 8
8
AIRFLOW (LFM)
AIRFLOW (LFM)
200
400
200
400
200
400
200
400
0
0
0
0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
Figure 8. Power Loss at 3.3V Output
0
WEBSITE
www.aavid.com
2
LOAD CURRENT (A)
BGA Heatsink
BGA Heatsink
BGA Heatsink
BGA Heatsink
BGA Heatsink
BGA Heatsink
HEATSINK
HEATSINK
4
none
none
none
none
none
none
6
12V LOSS
24V LOSS
4619 F08
LTM4619
8
Θ
Θ
JA
JA
12.8
11.9
13.4
12.5
9.0
8.0
8.4
7.4
9.6
8.5
8.9
7.9
(°C/W)
(°C/W)
15
4619f