Техническая Спецификация для Linear Technology LTM4608AEV DEMO BOARD, 2.7Vinmin, 8A DC/DC µModule Regulator DC1400A DC1400A
Модели
DC1400A
LTM4608A
5
4608afd
V
IN
(V)
2
V
OUT
(V)
1.5
2.0
2.5
3
5
4608A G06
1.0
0.5
0
4
3.0
3.5
4.0
6
I
OUT
= 6A
V
OUT
= 1.2V
V
OUT
= 1.5V
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
V
IN
(V)
2
V
OUT
(V)
1.5
2.0
2.5
3
5
4608A G05
1.0
0.5
0
4
3.0
3.5
4.0
6
I
OUT
= 8A
V
OUT
= 1.2V
V
OUT
= 1.5V
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
Typical perForMance characTerisTics
Efficiency vs Load Current
Burst Mode Efficiency with
5V Input
V
IN
to V
OUT
Step-Down Ratio
Supply Current vs V
IN
Load Transient Response
Load Transient Response
Efficiency vs Load Current
Efficiency vs Load Current
LOAD CURRENT
0
70
EFFICIENCY (%)
75
80
85
90
95
100
2
4
6
8
4608A G01
5V
IN
1.2V
OUT
5V
IN
1.5V
OUT
5V
IN
1.8V
OUT
5V
IN
2.5V
OUT
5V
IN
3.3V
OUT
CONTINUOUS MODE
LOAD CURRENT
0
70
EFFICIENCY (%)
75
80
85
90
95
100
2
4
6
8
4608A G02
3.3V
IN
1.2V
OUT
3.3V
IN
1.5V
OUT
3.3V
IN
1.8V
OUT
3.3V
IN
2.5V
OUT
CONTINUOUS MODE
LOAD CURRENT (A)
0
EFFICIENCY (%)
90
95
100
2
4
5
4608A G03
80
70
85
75
1
3
6
7
2.7V
IN
1.0V
OUT
2.7V
IN
1.5V
OUT
2.7V
IN
1.8V
OUT
CONTINUOUS MODE
V
IN
to V
OUT
Step-Down Ratio
LOAD CURRENT (A)
40
EFFICIENCY (%) 60
80
100
50
70
90
0.2
0.4
0.6
0.8
4608A G04
1.1
1.0
0.1
0
0.3
0.5
0.7
0.9
V
OUT
= 1.5V
V
OUT
= 2.5V
V
OUT
= 3.3V
INPUT VOLTAGE (V)
2.5
SUPPL
Y CURRENT (mA)
4.5
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
4608A G07
3.5
3
5
4
5.5
V
O
= 1.2V PULSE-SKIPPING MODE
V
O
= 1.2V BURST MODE
I
LOAD
1A/DIV
V
IN
2V/DIV
V
OUT
20mV/DIV
AC COUPLED
20µs/DIV
V
IN
= 5V
V
OUT
= 3.3V, R
FB
= 2.21k
2A/µs STEP
C
OUT
= 100µF X5R
C1 = 100pF, C3 = 22pF FROM FIGURE 18
4608A G08
20µs/DIV
V
IN
= 5V
V
OUT
= 2.5V, R
FB
= 3.09k
2.5A/µs STEP
C
OUT
= 100µF X5R
C1 = 120pF, C3 = 47pF FROM FIGURE 18
4608A G09
I
LOAD
2A/DIV
V
OUT
20mV/DIV
AC COUPLED