PRODUCT DATASHEET
AAT2552178
SystemPowerTM
Total Power Solution for Portable Applications
Typical Characteristics–Step-Down Converter
Line Regulation
(VOUT = 1.8V)
Soft Start
(VIN = 3.6V; VOUT = 1.8V; IOUT = 150mA)
4
3
2
1
0
0.2
VEN
IOUT = 10mA
0.1
0
VOUT
IOUT = 50mA
-0.1
-0.2
-0.3
-0.4
IL
0.3
0.2
0.1
0.0
IOUT = 150mA
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Time (100µs/div)
Output Voltage Accuracy vs. Temperature
(VIN = 3.6V; VO = 1.8V; IOUT = 150mA)
No Load Quiescent Current vs. Input Voltage
2.0
70
1.5
1.0
85°C
25°C
60
50
40
30
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-40°C
-40
-15
10
35
60
85
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Temperature (°C)
N-Channel RDS(ON) vs. Input Voltage
P-Channel RDS(ON) vs. Input Voltage
600
500
400
300
200
100
1000
900
800
700
600
500
400
300
85°C
85°C
100°C
120°C
100°C
120°C
25°C
25°C
2.5
3
3.5
4
4.5
5
5.5
6
2.5
3
3.5
4
4.5
5
5.5
6
VIN (V)
VIN (V)
w w w . a n a l o g i c t e c h . c o m
10
2552.2008.02.1.2
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
