PRODUCT DATASHEET
AAT2503178
SystemPowerTM
Adjustable 3-Channel Regulator
Typical Characteristics—LDO Regulator
DC Regulation
(VIN = 3.6V; VOUT = 2.8V)
Quiescent Current vs. Input Voltage
(VLDO = 2.8V)
2.5
2.0
1.5
35
31
27
23
19
15
IOUT = 150mA
IOUT = 50mA
1.0
IOUT = 100mA
IOUT = 50mA
0.5
0.0
IOUT = 1mA
-0.5
IOUT = 10mA
IOUT = 0mA
-1.0
IOUT = 100mA
IOUT = 150mA
-1.5
-2.0
-2.5
-40
-20
0
20
40
60
80
100
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Temperature (°C)
Input Voltage (V)
Turn-On Response Time
(VIN = 3.6V; VOUT = 1.8V; IOUT = 150mA)
Turn-Off Response Time
(VIN = 3.6V; VOUT = 1.8V; IOUT = 150mA)
6
7
6
7
4
2
6
5
4
3
2
1
0
-1
4
2
6
5
4
3
2
1
0
-1
0
0
-2
-4
-6
-8
-10
-2
-4
-6
-8
-10
Time (10µs/div)
Time (50µs/div)
Load Transient
(VIN = 3.6V; VOUT = 1.8V; IOUT = 1mA to 100mA)
Load Transient
(VIN = 3.6V; VOUT = 1.8V; IOUT = 50mA to 100mA)
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
-0.1
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
-0.1
Time (200µs/div)
Time (50µs/div)
w w w . a n a l o g i c t e c h . c o m
10
2503.2008.02.1.4
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
