PRODUCT DATASHEET
AAT1130
TM
SwitchReg
2.5MHz 500mA Step-Down DC/DC Converter
Typical Characteristics
Supply Current vs. Temperature
Output Voltage Error vs. Temperature
0.2
0.1
100
90
80
70
60
50
40
30
20
0
-0.1
-0.2
-0.3
-0.4
-0.5
-40
-15
10
35
60
85
-40
-15
10
35
60
85
Temperature (V)
Temperature (°C)
RDS(ON) vs. Temperature
Efficiency vs. Load Current
(VOUT = 1.8V Fixed)
100
90
80
70
60
50
40
30
20
10
0
450
400
350
300
250
200
150
100
50
VIN = 2.7V
V
IN = 3.6V
IN = 4.2V
V
VIN = 5V
PMOS
NMOS
VIN = 5.5V
0
0.0001
0.001
0.01
0.1
1
-40
-15
10
35
60
85
Temperature (°C)
Load Current (A)
Output Voltage Error vs. Load Current
Line Regulation
(VOUT = 1.8V Fixed)
(VOUT = 1.8V Fixed)
1
0.75
0.5
2
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
IOUT = 1mA
OUT = 10mA
1.5
I
IOUT = 100mA
IOUT = 300mA
1
0.5
0
V
IN = 5V
0.25
0
VIN = 5.5V
-0.5
-1
-0.25
-0.5
-0.75
-1.5
-2
-1
0.0001
0.001
0.01
0.1
1
2.7
3.2
3.7
4.2
4.7
5.2
5.7
Load Current (A)
Input Voltage (V)
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1130.2008.08.1.1
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ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
