AAT2506
1MHz Step-Down Converter/LDO Regulator
Typical Characteristics
Unless otherwise noted, VIN = 5V, TA = 25°C.
Step-Down Converter Soft Start
(VIN = 3.6V; VOUT = 1.5V; L = 4.7µH; ENLDO = GND)
Step-Down Converter Output Ripple
(VIN = 3.6V; VOUT = 1.8V; 400mA;
EN = VIN; ENLDO = GND)
4.0
3.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
40
20
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
2.0
0
1.0
-20
-40
-60
-80
-100
-120
0.0
-1.0
-2.0
-3.0
-4.0
Time (50µs/div)
Time (250ns/div)
2506.2005.12.1.0
11