Low Voltage 2MHz Step-Up DC/DC
Converter in SC70JW Package
Typical Characteristics
No Load Input Current vs. Input Voltage
200
AAT1265
Switching Frequency vs. Temperature
Switching Frequency Change (%)
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-40
Input Current (µA)
160
120
80
40
0
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
-15
10
35
60
85
Input Voltage (V)
Temperature (°C)
°
Maximum Load Current Capacity for a 4%
Drop in Output Voltage vs. Input Voltage
(V
OUT
= 3.3V)
600
Load Transient Response
(V
IN
= 1.2V; L = 2.2µH; C
O
= 4.7µF)
3.40
Load Current (mA)
500
400
300
200
100
0
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
Output Current (A)
3.35
3.30
3.25
3.20
0.15
0.10
0.05
0.00
50mA
100mA
Output Voltage (V)
Time (50µs/div)
Input Voltage (V)
Output Voltage vs. Temperature
(V
IN
= 1.5V; I
O
= 10mA)
0.40
Line Transient Response
(I
O
= 50mA; L = 2.2µH; C
O
= 4.7µF)
2.50
2.4V
Output Voltage Error (%)
0.20
Output Voltage (V)
2.25
Input Voltage (V)
0.00
-0.20
-0.40
-0.60
-0.80
-40
2.00
1.9V
3.34
3.32
3.30
3.28
3.26
1.75
1.50
-20
0
20
40
60
80
°
Temperature (°C)
Time (50µs/div)
6
1265.2006.06.1.2
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
