PRODUCT DATASHEET
AAT2113A
SwitchReg
TM
3MHz, Fast Transient 1.5A Step-Down Converter in 2mm x 2mm Package
Typical Characteristics
Efficiency vs. Output Current
(V
OUT
= 1.2V; L = 0.47µH)
100
90
80
100
90
80
Efficiency vs. Output Current
(V
OUT
= 1.8V; L = 0.47µH)
Efficiency (%)
70
60
50
40
30
20
10
0
0.1
1
10
100
Efficiency (%)
70
60
50
40
30
20
10
0
0.1
1
10
100
V
IN
= 5.5V
V
IN
= 5.0V
V
IN
= 4.2V
V
IN
= 3.6V
V
IN
= 3.0V
V
IN
= 2.7V
1000
10000
V
IN
= 5.5V
V
IN
= 5.0V
V
IN
= 4.2V
V
IN
= 3.6V
V
IN
= 3.0V
V
IN
= 2.7V
1000
10000
Output Current (mA)
Output Current (mA)
Load Regulation
(V
OUT
= 1.2V; L = 0.47µH)
1.0
0.8
V
IN
= 5.5V
V
IN
= 5.0V
V
IN
= 4.2V
V
IN
= 3.6V
V
IN
= 3.0V
V
IN
= 2.7V
Load Regulation
(V
OUT
= 1.8V; L = 0.47µH)
1.0
0.8
V
IN
= 5.5V
V
IN
= 5.0V
V
IN
= 4.2V
V
IN
= 3.6V
V
IN
= 3.0V
V
IN
= 2.7V
Load Regulation (%)
Load Regulation (%)
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
0.1
1
10
100
1000
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
0.1
1
10
100
1000
10000
10000
Output Current (mA)
Output Current (mA)
Line Regulation
(V
OUT
= 1.2V; L = 0.47µF)
1.0
0.8
1.0
Line Regulation
(V
OUT
= 1.8V; L = 0.47µF)
I
OUT
= 1500mA
I
OUT
= 1000mA
I
OUT
= 500mA
I
OUT
= 1mA
0.8
Line Regulation (%)
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
2.7
3.1
3.5
3.9
4.3
4.7
Line Regulation (%)
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
2.7
3.1
3.5
3.9
4.3
4.7
I
OUT
= 1500mA
I
OUT
= 1000mA
I
OUT
= 500mA
I
OUT
= 1mA
5.1
5.5
5.1
5.5
Input Voltage (V)
Input Voltage (V)
2113A.2009.06.1.1
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