PRODUCT DATASHEET
AAT1265
SwitchReg
TM
Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package
Typical Characteristics
Switching Frequency vs. Temperature
Switching Frequency Change (%)
0.5
600
Maximum Load Current Capacity for a 4%
Drop in Output Voltage vs. Input Voltage
(V
OUT
= 3.3V)
Load Current (mA)
500
400
300
200
100
0
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-40
-15
10
35
60
85
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
Temperature (°C)
°
Input Voltage (V)
Maximum Load Current Capability for a
4% Drop in Output Voltage vs. Input Voltage
(V
OUT
= 5V)
800
Load Transient Response
(V
IN
= 1.2V; L = 2.2µH; C
O
= 4.7µF)
3.40
Load Current (mA)
Output Current (A)
700
600
500
400
300
200
100
1.8
3.35
3.30
3.25
3.20
0.15
0.10
0.05
0.00
50mA
100mA
Output Voltage (V)
2.2
2.6
3.0
3.4
3.8
4.2
4.6
Input Voltage (V)
Time (50µs/div)
Output Voltage vs. Temperature
(V
IN
= 1.5V; I
OUT
= 10mA; V
OUT
= 3.3V)
0.40
Line Transient Response
(I
OUT
= 50mA; L = 2.2µH; C
OUT
= 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)
1265.2007.12.1.4
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