LTM4600HV
TYPICAL PERFOR A CE CHARACTERISTICS (See Figure 21 for all curves)
100
90
80
70
60
Ef?ciency vs Load Current
with 5V IN (FCB = 0)
100
90
80
70
60
Ef?ciency vs Load Current
with 12V IN (FCB = 0)
100
90
80
70
60
Ef?ciency vs Load Current
with 24V IN (FCB = 0)
50
40
30
0
2
4
6
0.6V OUT
1.2V OUT
1.5V OUT
2.5V OUT
8
10
50
40
30
0
2
4
6
0.6V OUT
1.2V OUT
1.5V OUT
2.5V OUT
3.3V OUT
8
10
50
40
30
0
2
4
6
1.8V OUT
2.5V OUT
3.3V OUT
5V OUT
8
10
90
LOAD CURRENT (A)
Ef?ciency vs Load Current
with Different FCB Settings
4600hv G01
LOAD CURRENT (A)
1.2V Transient Response
4600hv G02
LOAD CURRENT (A)
1.5V Transient Response
4600hv G03
80
70
60
FCB > 0.7V
V OUT = 50mV/DIV
50
40
FCB = GND
I OUT = 5A/DIV
30
20
0.1
1
LOAD CURRENT (A)
V IN = 12V
V OUT = 1.5V
10
25μs/DIV
1.2V AT 5A/μs LOAD STEP
C OUT = 3 ? 22μF 6.3V CERAMICS
470μF 4V SANYO POSCAP
C3 = 100pF
4600hv G05
25μs/DIV
1.5V AT 5A/μs LOAD STEP
C OUT = 3 ? 22μF 6.3V CERAMICS
470μF 4V SANYO POSCAP
C3 = 100pF
4600hv G06
4600hv G04
1.8V Transient Response
2.5V Transient Response
3.3V Transient Response
25μs/DIV
4600hv G07
25μs/DIV
4600hv G08
25μs/DIV
4600hv G09
1.8V AT 5A/μs LOAD STEP
C OUT = 3 ? 22μF 6.3V CERAMICS
470μF 4V SANYO POSCAP
C3 = 100pF
2.5V AT 5A/μs LOAD STEP
C OUT = 3 ? 22μF 6.3V CERAMICS
470μF 4V SANYO POSCAP
C3 = 100pF
3.3V AT 5A/μs LOAD STEP
C OUT = 3 ? 22μF 6.3V CERAMICS
470μF 4V SANYO POSCAP
C3 = 100pF
4600hvfc
4
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