AAT2550 Datasheet, PDF (9/35 Pages) Advanced Analogic Technologies – Total Power Solution for Portable Applications

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