AAT1265_0606 Datasheet, PDF (5/13 Pages) Advanced Analogic Technologies – Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package

AAT1265
Low Voltage 2MHz Step-Up DC/DC
Converter in SC70JW Package
Typical Characteristics
Single-Cell to 3.3V Efficiency
100
90
80
70
60
50
0.1
V_IN = 1.5V
V_IN = 1.2V
1
10
100
1000
Output Current (mA)
Dual-Cell to 3.3V Efficiency
100
V_IN = 3.0V
90
80
V_IN = 2.4V V_IN = 2.0V
70
60
50
0.1
1
10
100
1000
Output Current (mA)
Single-Cell Load Regulation
(V_O = 3.3V)
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
0.1
V_IN = 1.5V
V_IN = 1.2V
1
10
100
Output Current (mA)
Dual-Cell Load Regulation
(V_O = 3.3V)
2.0
1.5
1.0
0.5
V_IN = 3.0V
0.0
V_IN = 2.4V
-0.5
-1.0
-1.5
-2.0
0.1
V_IN = 2.0V
1
10
100
1000
Output Current (mA)
Minimum Start-Up Voltage vs. Load Current
2.4
2.2
2.0 Constant Current Load
1.8
1.6
1.4
Resistive Load
1.2
1.0
0.8
0
2
40
60
80
100 120 140 160
Current (mA)
PFM Mode Output Current Threshold
vs. Input Voltage
120
100
Increasing Load
80
60
40
Decreasing Load
20
0
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
Input Voltage (V)
1265.2006.06.1.2
5