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AAT2500 Datasheet, PDF (8/26 Pages) Advanced Analogic Technologies – 1MHz Step-Down Converter/LDO Regulator
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AAT2500
1MHz Step-Down Converter/LDO Regulator
Typical Characteristics
Unless otherwise noted, VIN = 5V, TA = 25°C.
Over-Current Protection
(EN = GND; ENLDO = VIN)
1200
1000
800
600
400
200
0
-200
Time (50ms/div)
LDO ENLDO vs. VIN
1.250
1.225
1.200
1.175
VIH
1.150
1.125
1.100
VIL
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
(VOUT = 2.5V; EN = VIN; ENLDO = GND)
100
VIN = 3.0V VIN = 3.3V
90
80
VIN = 3.6V
70
60
0.1
1.0
10
100
1000
Output Current (mA)
Step-Down Converter Load Regulation
(VOUT = 2.5V; EN = VIN; ENLDO = GND)
2.0
1.0
0.0
-1.0
-2.0
0.1
VIN = 3.0V
VIN = 3.3V
VIN = 3.6V
1.0
10
100
1000
Output Current (mA)
Step-Down Converter Efficiency vs. Load
(VOUT = 1.8V; EN = VIN; ENLDO = GND)
100
90 VIN = 2.7V
VIN = 3.6V
80
70
VIN = 4.2V
60
50
0.1
1.0
10
100
1000
Output Current (mA)
Step-Down Converter DC Regulation
(VOUT = 1.8V; EN = VIN; ENLDO = GND)
2.0
1.0
0.0
-1.0
-2.0
0.1
VIN = 4.2V
VIN = 2.7V
VIN = 3.6V
1.0
10
100
1000
Output Current (mA)
8
2500.2006.05.1.16
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