AME
AME5130
Switch Current Limit vs. V
IN
800
750
Micropower Step-Up
DC/DC Converter
Efficiency vs. Load Current
90
85
V
IN
=4.2V
V
IN
=3.3V
V
IN
=2.5V
Switch Current Limit (m A)
700
650
600
550
500
450
400
350
2
2.5
3
3.5
4
E FFICIENCY (% )
T
A
=25
o
C
T
A
=40
o
C
80
75
70
65
60
55
50
T
A
=85
o
C
V
OUT
=20V
0.5
5
10
15
20
25
30
35
40
45
4.5
5
5.5
Vin(V)
I
OUT
(mA)
Efficiency vs. Load Current
90
85
80
95
Efficiency vs. Load Current
90
85
V
IN
=5V
V
IN
=3.3V
V
IN
=4.2V
V
IN
=3.3V
V
IN
=2.5V
V
IN
=4.2V
EFFICIENCY (% )
EFFICIENCY (% )
75
70
65
60
55
50
45
40
0.5
V
IN
=2.5V
80
75
70
65
60
55
50
V
OUT
=12V
4
8
20
40
55
70
80
110 115
140 145
45
40
0.5
3
6
9
20
35
50
V
OUT
=5V
80 110 140 160 190 220 250
I
OUT
(mA)
I
OUT
(mA)
Enable Current vs. V
IN
(Part Switching)
140
130
Disable Current vs. V
IN
(Part Not Switching)
140
130
Disable Curren t (uA)
Enable Cirren t (uA)
120
110
100
90
80
70
60
50
40
2
2.5
3
3.5
4
T
A
=25 o C
120
110
100
90
80
70
60
50
40
T
A
=25 o C
T
A
=85 oC
T
A
=-40 oC
T
A
=85 oC
T
A
=-40 oC
4.5
5
5.5
6
2
2.5
3
3.5
4
4.5
5
5.5
6
V
IN
(V)
V
I N
(V)
Rev.F.02
11
AME [ ANALOG MICROELECTRONICS ]
