AAT3110
MicroPower™ Regulated Charge Pump
Typical Characteristics — AAT3110-4.5V
Unless otherwise noted, V
IN
= 3V, C
IN
= C
OUT
= 10µF, C
FLY
= 1µF, T
A
= 25°C.
Output Voltage vs. Output Current
4.54
Supply Current vs. Supply Voltage
18
3.6V
Output Voltage (V)
4.53
Supply Current (µA)
17
16
15
14
13
12
11
10
2.5
3
3.5
4
4.5
4.52
No Load, Switching
2.7V
4.51
4.5
4.49
0.1
1
10
100
1000
3.0V
3.3V
No Load, No Switching
Output Current (mA)
Supply Voltage (V)
Supply Current vs. V
SHDN
30
85
Efficiency vs. Supply Voltage
I
OUT
= 0µA
Supply Current (µA)
25
80
Efficiency (%)
75
70
65
60
55
20
100mA
50mA
5mA
V
IN
= 5.5V
15
10
5
V
IN
= 2.8V
V
IN
= 3.3V
50
0
0
1
2
3
4
5
2.7
2.9
3.1
3.3
3.5
3.7
3.9
4.1
4.3
4.5
Supply Voltage (V)
V
SHDN
Control Voltage (V)
Efficiency vs. Load Current
85
80
Oscillator Frequency vs. Supply Voltage
Oscillator Frequency (kHz)
1200
1100
1000
900
800
700
600
500
400
2.7
Efficiency (%)
V
IN
= 2.7V
- 40°C
75
70
65
60
0.1
1
10
100
1000
V
IN
= 3.0V
V
IN
= 3.3V
25°C
85°C
3.0
3.5
4.0
4.5
5.0
Load Current (mA)
Supply Voltage (V)
8
3110.2005.11.1.4
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
