Datasheet

LTM4625
4
Rev D
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TYPICAL PERFORMANCE CHARACTERISTICS
1V Output Transient Response
3.3V Output Transient Response
1.5V Output Transient Response
5V Output Transient Response
2.5V Output Transient Response
Efficiency vs Load Current
from 5V
IN
Efficiency vs Load Current
from 12V
IN
DCM Mode Efficiency, V
OUT
= 1.5V
LOAD CURRENT (A)
30
EFFICIENCY (%)
90
100
20
10
80
50
70
60
40
0.001 0.1 1 10
4625 G03
0
0.01
V
IN
= 5V
V
IN
= 12V
V
OUT
50mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
V
IN
= 12V
V
OUT
= 1V
I
OUT
= 4A TO 5A, 1A/µs
OUTPUT CAPACITOR = 47µF CERAMIC
20µs/DIV
4625 G04
V
OUT
50mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
V
IN
= 12V
V
OUT
= 1.5V
I
OUT
= 4A TO 5A, 1A/µs
OUTPUT CAPACITOR = 47µF CERAMIC
20µs/DIV
4625 G05
V
OUT
50mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
V
IN
= 12V
V
OUT
= 2.5V
I
OUT
= 4A TO 5A, 1A/µs
OUTPUT CAPACITOR = 47µF CERAMIC
20µs/DIV
4625 G06
V
OUT
50mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
V
IN
= 12V
V
OUT
= 3.3V
I
OUT
= 4A TO 5A, 1A/µs
OUTPUT CAPACITOR = 47µF CERAMIC
20µs/DIV
4625 G07
V
OUT
50mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
V
IN
= 12V
V
OUT
= 5V
I
OUT
= 4A TO 5A, 1A/µs
OUTPUT CAPACITOR = 47µF CERAMIC
20µs/DIV
4625 G08
LOAD CURRENT (A)
0
EFFICIENCY (%)
80
85
90
5
4625 G01
75
70
1
2
3 4
65
100
95
2.5V
OUT
1.5V
OUT
1V
OUT
3.3V
OUT
1.8V
OUT
1.2V
OUT
LOAD CURRENT (A)
0
EFFICIENCY (%)
80
85
90
5
4625 G02
75
70
1
2
3 4
60
65
95
3.3V
OUT
1.8V
OUT
1.2V
OUT
5V
OUT
2.5V
OUT
1.5V
OUT
1V
OUT
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