AME, Inc.
Step-Up/Step-Down
AME7720 / 7721
60mA Regulated Charge Pump
Efficiency vs. VIN
Short-Circuit Load Current vs VIN
250
225
200
175
150
125
100
75
100
90
80
70
60
50
40
30
20
10
0
VOUT=5V
50
25
0
1.5
2
2.5
3
3.5
4
4.5
5
5.5
1.5
2
2.5
2.7
3
3.5
4
4.5
5
5.5
VIN (V)
VIN (V)
Shutdown Supply Current vs Temperature
Maximum Load Current vs Input Voltage
120
20
110
100
90
80
70
60
50
40
30
20
10
0
18
TA<=85oC
EN=Low
16
14
12
10
8
6
4
2
0
1.5
2
2.5
2.7
3
3.5
3.6
4
4.5
5
5.5
-40 -30 -20 -10
0
10 20 30 40 50 60 70 80 90
VIN (V)
o
Temperature ( C)
Efficiency vs Load Current
Quiescent Current vs Temperature
(No Load)
90
80
70
60
100
80
VIN=2.7V
VIN=3.0V
IOUT=0mA
60
40
20
0
50
40
VIN =5.0V
30
20
10
0
For VOUT=5V only
-40
-20
25
55
85
1
10
100
0
Temperature (oC)
Load Current (mA)
9
AKM [ ASAHI KASEI MICROSYSTEMS ]
