High Efficiency 2X Charge Pump
Typical Characteristics _ AAT3119-4.5V
Output Voltage vs. Output Current
5.0
4.8
4.6
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
0
40
80
120
160
200
AAT3119
Supply Current vs. Supply Voltage
3.00
I
OUT
= 0μA
2.75
C
FLY
= 1μF
V
EN
= V
IN
2.50
Output Voltage (V)
Supply Current (mA)
V
IN
=3.3
V
IN
=3.6
2.25
2.00
1.75
1.50
1.25
1.00
2.5
3.0
3.5
4.0
4.5
5.0
V
IN
= 2.7
V
IN
= 3.0
Output Current (mA)
Supply Voltage (V)
Supply Current vs. V
EN
5
Efficiency vs. Supply Voltage
I
OUT
= 0μA
100
90
80
50mA
Supply Current (mA)
4
Efficiency (%)
70
60
50
40
30
20
10
0
2.7
3.0
3.3
3.6
3.9
4.2
4.5
100mA
150mA
3
2
1
0
V
IN
= 2.8V
V
IN
= 3.3V
V
IN
= 5.5
0
1
2
3
4
5
6
V
EN
Control Voltage (V)
Supply Voltage (V)
Efficiency vs. Load Current
90
80
V
IN
= 2.7V
V
IN
= 3.0V
Oscillator Frequency vs. Supply Voltage
Oscillator Frequency (MHz)
1.30
+85°C
1.25
+25°C
-40°C
100
Efficiency (%)
70
60
50
40
30
20
10
0
0.1
1.0
10
100
1000
V
IN
= 3.3V
V
IN
= 3.6V
1.20
1.15
1.10
2.7
3.0
3.3
3.6
3.9
4.2
4.5
Load Current (mA)
Supply Voltage (V)
3119.2007.02.1.2
7
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
