Datasheet

LTM4624
4
4624fb
For more information www.linear.com/LTM4624
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
with 5V
IN
Efficiency vs Load Current
with 12V
IN
DCM Mode Efficiency, V
OUT
= 1.5V
LOAD CURRENT (A)
0
EFFICIENCY (%)
80
85
90
4
4624 G01
75
70
50
1
2
3
55
60
65
100
95
V
OUT
= 3.3V
V
OUT
= 2.5V
V
OUT
= 1.5V
V
OUT
= 1.2V
V
OUT
= 1V
LOAD CURRENT (A)
0
EFFICIENCY (%)
80
85
90
4
4624 G02
75
70
50
1
2
3
55
60
65
100
95
V
OUT
= 5V
V
OUT
= 3.3V
V
OUT
= 2.5V
V
OUT
= 1.5V
V
OUT
= 1.2V
V
OUT
= 1V
LOAD CURRENT (A)
30
EFFICIENCY (%)
90
100
20
10
80
50
70
60
40
0.001 0.1 1 10
4624 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
= 3A TO 4A, 1A/µs
OUTPUT CAPACITOR = 1 × 47µF CERAMIC
20µs/DIV
4624 G04
V
OUT
50mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
V
IN
= 12V
V
OUT
= 1.5V
I
OUT
= 3A TO 4A, 1A/µs
OUTPUT CAPACITOR = 1 × 47µF CERAMIC
20µs/DIV
4624 G05
V
OUT
50mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
V
IN
= 12V
V
OUT
= 2.5V
I
OUT
= 3A TO 4A, 1A/µs
OUTPUT CAPACITOR = 1 × 47µF CERAMIC
20µs/DIV
4624 G06
V
OUT
50mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
V
IN
= 12V
V
OUT
= 3.3V
I
OUT
= 3A TO 4A, 1A/µs
OUTPUT CAPACITOR = 1 × 47µF CERAMIC
20µs/DIV
4624 G07
V
OUT
50mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
V
IN
= 12V
V
OUT
= 5V
I
OUT
= 3A TO 4A, 1A/µs
OUTPUT CAPACITOR = 1 × 47µF CERAMIC
20µs/DIV
4624 G08