MicroPower™ Regulated Charge Pump
Typical Characteristics — AAT3111-3.6
Unless otherwise noted, V
IN
= 3V, C
IN
= C
OUT
= 10µF, C
FLY
= 1µF, T
A
= 25°C.
AAT3111
Output Voltage vs. Output Current
3.75
60
Supply Current vs. Supply Voltage
Ooutput Voltage (V)
3.70
3.65
3.60
3.55
3.50
3.45
0.01
Supply Current (μA)
V
IN
= 2.9V
50
40
30
20
10
0
No Load, Switching
V
IN
= 2.0V
V
IN
= 2.3V
No Load, Not Switching
0.1
1
10
100
1000
1.6
2.1
2.6
3.1
3.6
Output Current (mA)
Supply Voltage (V)
Efficiency vs. Supply Voltage
100
95
90
100
Efficiency vs. Load Current
Efficiency (%)
Efficiency (%)
85
80
75
70
65
60
55
50
1.8
2.0
50mA
100mA
10mA
90
80
70
60
50
40
30
20
10
0
V
IN
= 2.0V
V
IN
= 2.3V
V
IN
= 2.6V
2.2
2.4
2.6
2.8
3.0
3.2
0.01
0.1
1
10
100
Supply Voltage (V)
Load Current (mA)
Startup
0.9
V
SHDN
Threshold vs. Supply Voltage
SHDN
(2V/div)
V
SHDN
Threshold (V)
I
LOAD
= 100mA
V
IN
= 2.1V
I
LOAD
= 50mA
V
IN
= 2.1V
0.8
V
IH
0.7
0.6
0.5
0.4
1.5
1.7
1.9
2.1
2.3
2.5
2.7
2.9
3.1
V
IL
V
OUT
(1V/div)
Time (100μs/div)
Supply Voltage (V)
3111.2006.06.1.3
7
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
