PRODUCT DATASHEET
AAT2503178
SystemPower
TM
Typical Characteristics—LDO Regulator
Dropout Voltage vs. Temperature
(V
OUT
= 2.8V)
120
100
Adjustable 3-Channel Regulator
Dropout Voltage vs. Output Current
(V
OUT
= 2.8V)
Dropout Voltage (mV)
Dropout Voltage (mV)
100
80
60
40
20
0
-40
-20
0
20
40
60
80
150mA
90
80
70
60
50
40
30
20
10
0
0
20
40
60
85°C
25°C
100mA
50mA
-40°C
100
120
80
100
120
140
160
Temperature (°C)
°
Output Current (mA)
Dropout Characteristics
LDO Output Voltage (V
OUTA
) (V)
3.0
LDO Output Voltage vs. LDO Input Voltage
(I
OUTA
= 100mA, V
IN
= V
P
= 3.6V)
1.90
1.85
1.80
1.75
1.70
1.65
1.60
1.55
1.50
1.45
1.40
1.35
1.30
1.6
1.7
1.8
1.9
2.0
2.1
2.2
Output Voltage (V)
2.9
1mA
2.8
2.7
2.6
2.5
2.4
2.7
10mA
V
OUTA
= 1.8V
150mA
100mA
50mA
V
OUTA
= 1.5V
2.8
2.9
3.0
3.1
3.2
2.3
2.4
2.5
Input Voltage (V)
LDO Input Voltage (V
LDOA/B
) (V)
DC Regulation
(V
IN
= 3.6V; V
OUT
= 1.2V)
2.5
2.0
2.5
2.0
DC Regulation
(V
IN
= 3.6V; V
OUT
= 1.8V)
DC Regulation (%)
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-40
-20
0
20
40
60
80
100
DC Regulation (%)
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-40
-20
0
20
40
I
OUT
= 50mA
I
OUT
= 50mA
I
OUT
= 1mA
I
OUT
= 100mA
I
OUT
= 150mA
I
OUT
= 1mA
I
OUT
= 150mA
I
OUT
= 100mA
60
80
100
Temperature (°C)
°
Temperature (°C)
°
2503.2008.02.1.4
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