AAT1265
Low Voltage 2MHz Step-Up DC/DC
Converter in SC70JW Package
Typical Characteristics
Single-Cell to 3.3V Efficiency
Dual-Cell to 3.3V Efficiency
100
90
80
70
60
50
100
VIN = 3.0V
90
VIN = 1.5V
VIN = 1.2V
80
VIN = 2.4V VIN = 2.0V
70
60
50
0.1
1
10
100
1000
0.1
1
10
100
1000
Output Current (mA)
Output Current (mA)
Single-Cell Load Regulation
(VO = 3.3V)
Dual-Cell Load Regulation
(VO = 3.3V)
2.0
2.0
1.5
1.5
1.0
1.0
0.5
0.5
VIN = 3.0V
VIN = 2.4V
0.0
0.0
-0.5
-1.0
-1.5
-2.0
-0.5
-1.0
-1.5
-2.0
VIN = 1.5V
VIN = 1.2V
VIN = 2.0V
0.1
1
10
100
1000
0.1
1
10
100
Output Current (mA)
Output Current (mA)
Minimum Start-Up Voltage vs. Load Current
PFM Mode Output Current Threshold
vs. Input Voltage
2.4
2.2
120
100
80
60
40
20
0
Increasing Load
2.0
1.8
1.6
1.4
1.2
1.0
0.8
Constant Current Load
Resistive Load
Decreasing Load
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
0
2
40
60
80
100
120
140
160
Current (mA)
Input Voltage (V)
1265.2006.05.1.1
5
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