AAT2552 Datasheet, PDF (11/33 Pages) Advanced Analogic Technologies – Total Power Solution for Portable Applications

AAT2552
Total Power Solution for Portable Applications
Typical Characteristics–Step-Down Converter
Line Regulation
(V_OUT = 1.8V)
0.2
0.1
I_OUT = 10mA
0
I_OUT = 50mA
-0.1
-0.2
-0.3
I_OUT = 150mA
-0.4
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Soft Start
(V_IN = 3.6V; V_OUT = 1.8V; I_OUT = 150mA)
4
VEN
3
2
VOUT
1
0
I_L
0.3
0.2
0.1
0.0
Time (100µs/div)
Output Voltage Accuracy vs. Temperature
(V_IN = 3.6V; V_O = 1.8V; I_OUT = 150mA)
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-40
-15
10
35
60
85
Temperature (°C)
No Load Quiescent Current vs. Input Voltage
70
60
85°C
25°C
50
40
-40°C
30
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
N-Channel R_DS(ON) vs. Input Voltage
1000
900
85°C
800
100°C
120°C
700
600
500
400 25°C
300
2.5
3
3.5
4
4.5
5
5.5
6
V_IN (V)
P-Channel R_DS(ON) vs. Input Voltage
600
500
85°C _{100°C 120°C}
400
300
200
25°C
100
2.5
3
3.5
4
4.5
5
5.5
6
V_IN (V)
2552.2007.04.1.0
11