AAT2554
Total Power Solution for Portable Applications
Typical Characteristics – LDO Regulator
Dropout Voltage vs. Temperature
Dropout Characteristics
3.2
3.0
2.8
2.6
2.4
2.2
2.0
540
480
420
360
300
240
180
120
60
IL = 300mA
IOUT = 0mA
IOUT = 300mA
IL = 100mA
IL = 150mA
IOUT = 150mA
IOUT = 100mA
IOUT = 50mA
IOUT = 10mA
IL = 50mA
0
-40 -30 -20 -10
0
10 20 30 40 50 60 70 80 90 100 110 120
2.7
2.8
2.9
3.0
3.1
3.2
3.3
Temperature (°C)
Input Voltage (V)
Ground Current vs. Input Voltage
Dropout Voltage vs. Output Current
90
500
450
400
350
300
250
200
150
100
50
80
70
60
50
40
30
20
10
0
IOUT = 300mA
85°C
IOUT = 150mA
IOUT = 50mA
25°C
IOUT = 0mA
IOUT = 10mA
-40°C
0
0
50
100
150
200
250
300
2
2.5
3
3.5
4
4.5
5
Input Voltage (V)
Output Current (mA)
Quiescent Current vs. Temperature
Output Voltage vs. Temperature
100
90
80
70
60
50
40
30
20
10
0
1.203
1.202
1.201
1.200
1.199
1.198
1.197
1.196
-40 -30 -20 -10
0
10 20 30 40 50 60 70 80 90 100 110 120
-40 -30 -20 -10
0
10 20 30 40 50 60 70 80 90 100
Temperature (°C)
Temperature (°C)
2554.2007.01.1.2
13
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
