AAT2552 Datasheet, PDF (12/33 Pages) Advanced Analogic Technologies – Total Power Solution for Portable Applications

AAT2552
Total Power Solution for Portable Applications
Typical Characteristics–Step-Down Converter
Load Transient Response
(10mA to 300mA; V_IN = 3.6V; V_OUT = 1.8V; C_OUT = 4.7µF; C = 100pF)
2.0
1.9
VOUT
1.8
1.7
1.6
IOUT
300mA
10mA
0.2
ILX
0.0
-0.2
Line Transient Response
(V_OUT = 1.8V @ 150mA, C_FF = 100pF)
1.90
1.85
1.80
1.75
4.6
4.1
3.6
3.1
Time (20µs/div)
Time (25µs/div)
Output Voltage Ripple
(V_IN = 3.6V; V_OUT = 1.8V; I_OUT = 300mA)
1.81
1.80
1.79
0.4
0.3
0.2
0.1
Time (0.2µs/div)
Output Voltage Ripple
(V_IN = 3.6V; V_OUT = 1.8V; I_OUT = 1mA)
40
20
0
-20
Time (5µs/div)
0.05
0.00
-0.05
-0.10
12
2552.2007.04.1.0