PRODUCT DATASHEET
AAT2113A
TM
SwitchReg
3MHz, FastTransient 1.5A Step-Down Converter in 2mm x 2mm Package
Typical Characteristics
Efficiency vs. Output Current
(VOUT = 1.2V; L = 0.47µH)
Efficiency vs. Output Current
(VOUT = 1.8V; L = 0.47µH)
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
VIN = 5.5V
IN = 5.0V
VIN = 5.5V
IN = 5.0V
VIN = 4.2V
VIN = 3.6V
VIN = 3.0V
VIN = 2.7V
V
V
VIN = 4.2V
VIN = 3.6V
IN = 3.0V
V
VIN = 2.7V
0.1
1
10
100
1000
10000
0.1
1
10
100
1000
10000
Output Current (mA)
Output Current (mA)
Load Regulation
Load Regulation
(VOUT = 1.2V; L = 0.47µH)
(VOUT = 1.8V; L = 0.47µH)
1.0
1.0
0.8
VIN = 5.5V
VIN = 5.0V
VIN = 4.2V
VIN = 3.6V
VIN = 3.0V
VIN = 2.7V
VIN = 5.5V
VIN = 5.0V
0.8
0.6
V
IN = 4.2V
0.6
VIN = 3.6V
VIN = 3.0V
VIN = 2.7V
0.4
0.4
0.2
0.2
0.0
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
-0.2
-0.4
-0.6
-0.8
-1.0
0.1
1
10
100
1000
10000
0.1
1
10
100
1000
10000
Output Current (mA)
Output Current (mA)
Line Regulation
Line Regulation
(VOUT = 1.2V; L = 0.47µF)
(VOUT = 1.8V; L = 0.47µF)
1.0
1.0
IOUT = 1500mA
OUT = 1000mA
IOUT = 500mA
OUT = 1mA
IOUT = 1500mA
OUT = 1000mA
IOUT = 500mA
OUT = 1mA
0.8
0.6
0.8
0.6
I
I
0.4
0.4
I
I
0.2
0.2
0.0
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
-0.2
-0.4
-0.6
-0.8
-1.0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Input Voltage (V)
w w w . a n a l o g i c t e c h . c o m
2113A.2009.06.1.1
5
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
