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