AAT2506 Datasheet, PDF (8/26 Pages) Advanced Analogic Technologies – 1MHz Step-Down Converter/LDO Regulator

AAT2506
1MHz Step-Down Converter/LDO Regulator
Typical Characteristics
Unless otherwise noted, V_IN = 5V, T_A = 25°C.
Over-Current Protection
(EN = GND; ENLDO = V_IN)
1200
1000
800
600
400
200
0
-200
Time (50ms/div)
LDO ENLDO vs. V_IN
1.250
1.225
1.200
1.175
V_IH
1.150
1.125
1.100
V_IL
1.075
1.050
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
Step-Down Converter Efficiency vs. Load
(V_OUT = 3.3V; L = 10µH; ENLDO = GND)
100
90
V_IN = 3.9V
80
V_IN = 4.2V
70
60
0.1
1
10
100
1000
Output Current (mA)
Step-Down Converter DC Regulation
(V_OUT = 3.3V; L = 10µH; ENLDO = GND)
3.0
2.0
V_IN = 4.2V
1.0
0.0
-1.0
V_IN = 3.9V
-2.0
-3.0
0.1
1
10
100
1000
Output Current (mA)
Step-Down Converter Efficiency vs. Load
(V_OUT = 2.5V; L = 10µH; ENLDO = GND)
100
V_IN = 3.3V
90
V_IN = 3.0V V_IN = 3.6V
80
70
60
0.1
1
10
100
1000
Output Current (mA)
Step-Down Converter DC Regulation
(V_OUT = 2.5V; L = 10µH; ENLDO = GND)
3.0
2.0 ^{VIN = 3.3V}
1.0
V_IN = 3.6V
0.0
-1.0 VIN = 3.0V
-2.0
-3.0
0.1
1
10
100
Output Current (mA)
1000
8
2506.2005.12.1.0