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LTM4602 Arkusz danych(PDF) 4 Page - Linear Technology

Numer części LTM4602
Szczegółowy opis  6A High Effi ciency DC/DC 關Module
PDF  24 Pages
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Producent  LINER [Linear Technology]
Strona internetowa  http://www.linear.com
Logo LINER - Linear Technology

LTM4602 Arkusz danych(HTML) 4 Page - Linear Technology

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LTM4602
4
4602fa
Efficiency vs Load Current
with 5VIN (FCB = 0)
Efficiency vs Load Current
with 12VIN (FCB = 0)
Efficiency vs Load Current
with 20VIN (FCB = 0)
1.2V Transient Response
1.5V Transient Response
1.8V Transient Response
2.5V Transient Response
3.3V Transient Response
(See Figure 21 for all curves)
VOUT
50mV/DIV
1.2V AT 3A/μs LOAD STEP
COUT = 1 × 22μF, 6.3V CERAMICS
330μF, 4V SANYO POSCAP
IOUT
2A/DIV
20μs/DIV
4602 G05
1.5V AT 3A/μs LOAD STEP
COUT = 1 × 22μF, 6.3V CERAMICS
330μF, 4V SANYO POSCAP
20μs/DIV
4602 G06
VOUT
50mV/DIV
IOUT
2A/DIV
1.8V AT 3A/μs LOAD STEP
COUT = 1 × 22μF, 6.3V CERAMICS
330μF, 4V SANYO POSCAP
20μs/DIV
4602 G07
VOUT
50mV/DIV
IOUT
2A/DIV
2.5V AT 3A/μs LOAD STEP
COUT = 1 × 22μF, 6.3V CERAMICS
330μF, 4V SANYO POSCAP
20μs/DIV
4602 G08
VOUT
50mV/DIV
IOUT
2A/DIV
3.3V AT 3A/μs LOAD STEP
COUT = 1 × 22μF, 6.3V CERAMICS
330μF, 4V SANYO POSCAP
20μs/DIV
4602 G09
VOUT
50mV/DIV
IOUT
2A/DIV
LOAD CURRENT (A)
0
30
40
50
100
70
2
4
4602 G01
80
90
60
6
8
0.8VOUT
1.2VOUT
1.5VOUT
1.8VOUT
2.5VOUT
3.3VOUT*
*FOR 5V TO 3.3V CONVERSION,
SEE FREQUENCY ADJUSTMENT
IN APPLICATIONS INFORMATION
LOAD CURRENT (A)
0
30
40
50
100
70
2
4
4602 G02
80
90
60
6
8
0.8VOUT
1.2VOUT
1.5VOUT
1.8VOUT
2.5VOUT
3.3VOUT
3.3VOUT (950kHz)*
*950kHz INSTEAD OF 1.3MHz
INCREASES 3.3V EFFICIENCY 2%
LOAD CURRENT (A)
0
50
60
70
8
4602 G03
40
30
2
4
6
100
90
80
1.2VOUT
1.5VOUT
1.8VOUT
2.5VOUT
3.3VOUT
Light Load Efficiency vs
Load Current with 12VIN
(FCB > 0.7V, <5V)
LOAD CURRENT (A)
0
60
80
100
0.8
4602 G04
40
50
70
90
30
0.2
0.1
0.4
0.3
0.6 0.7
0.9
0.5
1
1.2VOUT
1.5VOUT
1.8VOUT
2.5VOUT
3.3VOUT
TYPICAL PERFORMANCE CHARACTERISTICS



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