LTM4618(RevA) Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LTM4618
(Rev.:RevA)
(Rev.:RevA)
Linear Technology
LTM4618 Datasheet PDF : 24 Pages
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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
VIN (V)
5, 12
5, 12
5, 12
5, 12
5, 12
5, 12
POWER LOSS CURVE
Figure 7
Figure 7
Figure 7
Figure 7
Figure 7
Figure 7
AIRFLOW (LFM)
0
200
400
0
200
400
HEAT SINK
None
None
None
BGA Heat Sink
BGA Heat Sink
BGA Heat Sink
LTM4618
ΘJA (°C/W)
16
12.2
11.2
15.2
11.6
10.7
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
VIN (V)
12, 24
12, 24
12, 24
12, 24
12, 24
12, 24
POWER LOSS CURVE
Figure 8
Figure 8
Figure 8
Figure 8
Figure 8
Figure 8
AIRFLOW (LFM)
0
200
400
0
200
400
Heat Sink Used: 15 × 9 Version of Aavid #375424B000346
HEAT SINK
None
None
None
BGA Heat Sink
BGA Heat Sink
BGA Heat Sink
ΘJA (°C/W)
15
11.2
10.2
14.2
10.6
9.7
Table 4. Output Voltage Response vs Component Matrix (Refer to Figure 21) 0A to 3A Load Step
CIN
CIN
COUT1
COUT2
C2
VOUT (V) (CERAMIC) (BULK) (CERAMIC) (BULK) COMP (pF)
1
22μF × 2 68μF 100μF × 4 None None 100
FREQ DROOP P-P DEVIATION RECOVERY LOAD STEP RFB
(kHz) (mV)
(mV)
TIME (μs) (A/μs) (kΩ)
400 38
76
35
3
242
1
22μF × 2 68μF 100μF × 2 220μF None None 400
35
70
35
3
242
1
22μF × 2 68μF
100μF 470μF None None 400
30
60
35
3
242
1.2
22μF × 2 68μF 100μF × 4 None None 47 400
40
80
30
3
121
1.2
22μF × 2 68μF 100μF × 2 220μF None None 400
37
74
35
3
121
1.2
22μF × 2 68μF
100μF 470μF None None 400
27
54
35
3
121
1.5
22μF × 2 68μF 100μF × 3 None None 47 500
48
96
36
3
68.1
1.5
22μF × 2 68μF
100μF 220μF None None 500
40
80
36
3
68.1
1.5
22μF × 2 68μF
100μF 470μF None None 500
30
60
40
3
68.1
1.8
22μF × 2 68μF 100μF × 3 None None 47 500
52
104
36
3
48.7
1.8
22μF × 2 68μF
100μF 220μF None None 500
45
90
35
3
48.7
1.8
22μF × 2 68μF 100μF × 4 None None 47 500
50
100
35
3
48.7
2.5
22μF × 2 68μF 100μF × 3 None None 47 500
65
130
38
3
28
2.5
22μF × 2 68μF 100μF × 4 None None None 600
75
150
35
3
28
2.5
22μF × 2 68μF
100μF 220μF None None 600
60
120
45
3
28
3.3
22μF × 2 68μF 100μF × 2 None None 22 600
90
180
36
3
19.1
3.3
22μF × 2 68μF 100μF × 2 None None 47 600
80
160
40
3
19.1
5
22μF × 2 68μF
100μF
None None 47 600 150
300
40
3
11.5
4618fa
17
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