PRODUCT DATASHEET
AAT2552178
SystemPowerTM
Total Power Solution for Portable Applications
Typical Characteristics–LDO Regulator
Quiescent Current vs. Temperature
(VIN = 5V)
Dropout Voltage vs. Temperature
0.5
0.4
0.3
0.2
0.1
0.0
120
110
100
90
IL = 300mA
IL = 200mA
IL = 100mA
IL = 50mA
80
70
60
50
-40
-20
0
20
40
60
80
100
120
-40
-15
10
35
60
85
Temperature (°C)
Temperature (°C)
LDO Dropout Characteristics
(EN = GND; ENLDO = VIN)
Dropout Voltage vs. Output Current
0.5
0.4
0.3
0.2
0.1
0.0
3.20
85°C
25°C
3.00
2.80
2.60
2.40
2.20
2.00
IOUT = 0mA
IOUT = 300mA
IOUT = 150mA
IOUT = 100mA
IOUT = 50mA
-40°C
IOUT = 10mA
2.80
0
50
100
150
200
250
300
2.70
2.90
3.00
3.10
3.20
3.30
Output Current (mA)
Input Voltage (V)
Output Voltage vs. Temperature
(VIN = 3.6V; VO = 1.8V; IOUT = 150mA)
Enable Threshold Voltage vs. Input Voltage
3.301
3.300
3.299
3.298
3.297
3.296
0.96
0.94
VEN(H)
0.92
0.9
0.88
0.86
VEN(L)
0.84
0.82
-40
-15
10
35
60
85
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Temperature (°C)
w w w . a n a l o g i c t e c h . c o m
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2552.2008.02.1.2
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
