PRODUCT DATASHEET
AAT2504178
SystemPowerTM
Adjustable 3-Channel Regulator
Typical Characteristics–LDO Regulator
LDO Output Voltage Variation vs. Temperature
(VOUT = 2.5V)
LDO Line Regulation
(VOUT = 2.5V)
0.4
0.3
0.10
0.05
300mA
0.2
0.00
100mA
10mA
0.1
-0.05
200mA
0.0
-0.10
-0.1
-0.2
-0.3
-0.4
-0.15
100mA
1mA
50mA
200mA
300mA
-0.20
-0.25
-0.30
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
-40
-15
10
35
60
85
Temperature (°C)
Input Voltage (V)
LDO Load Regulation
(VOUT = 2.5V)
LDO Load Transient
(VOUT = 1.8V)
50
25
0
0.4
0.2
VIN = 2.7V
VIN = 3.6V
0.0
-25
-0.2
-0.4
-0.6
-0.8
VIN = 4.2V
0.3
0.2
0.1
0.0
VIN = 5.5V
0.1
1
10
100
1000
Output Current (mA)
Time (50µs/div)
LDO Line Transient
(VOUT = 1.8V; IOUT = 300mA)
No Load Quiescent Current vs. Input Voltage
(Both LDOs Enabled, Step-Down Converter Disabled)
100
50
0
50
45
40
35
30
25
20
15
10
85°C
25°C
-50
4.5
-40°C
4.0
3.5
3.0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Time (50µs/div)
Input Voltage (V)
w w w . a n a l o g i c t e c h . c o m
2504.2008.02.1.2
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ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
