LTM4602 LINER [Linear Technology], LTM4602 Datasheet - Page 4

• Manufacturer Part Number: LTM4602
• Description: 6A High Effi ciency DC/DC ?Module
• Manufacturer: LINER [Linear Technology]

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