AAT2550
Total Power Solution for Portable Applications
Typical Characteristics—Step-Down Converter
Line Response
(VOUT = 1.8V @ 400mA)
Output Ripple
(VIN = 3.6V; VOUT = 1.8V; IOUT = 1mA)
40
20
0.30
0.25
0.20
0.15
0.10
0.05
0.00
-0.05
-0.10
1.82
1.81
1.80
1.79
1.78
1.77
1.76
6.0
5.5
5.0
4.5
4.0
3.5
3.0
VO
0
-20
-40
-60
-80
-100
-120
IL
Time (25μμs/div)
Time (10µs/div)
Output Ripple
(VIN = 3.6V; VOUT = 1.8V; IOUT = 400mA)
40
20
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
VO
0
-20
-40
-60
-80
-100
-120
IL
Time (500ns/div)
2550.2006.07.1.0
9