PRODUCT DATASHEET
AAT2783
SystemPowerTM
Triple Output PMIC: Dual Buck with Low-VIN LDO
Typical Characteristics—LDO
LDO Line Regulation
(VIN3 = VOUT2 = 1.7V; VOUT3 = 1.2V; Vary VIN)
LDO VIH and VIL vs. Input Voltage
(VEN1 = 0V; VEN2 = VEN3 = VIN)
0.5
0.4
1.0
0.3
IOUT = 0.1mA to 400mA
VIH
0.9
0.2
0.1
0.0
0.8
0.7
0.6
VIL
-0.1
-0.2
-0.3
-0.4
-0.5
2.5
3.0
3.5
4.0
4.5
5.0
5.5
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
Input Voltage (V)
LDO Dropout Characteristics
(VIN = 3.3V; Vary VIN3 from 3.3V to 1V; VOUT3 = 1.2V;
IOUT3 = 0.1mA to 400mA; -40°C)
LDO Dropout Characteristics
(VIN = 3.3V; VIN3 = 3.3V to 1V; VOUT3 = 1.2V;
IOUT3 = 0.1mA to 400mA; 85°C)
1.210
1.205
1.200
1.195
1.190
1.185
1.180
1.210
1.205
1.200
1.195
1.190
1.185
1.180
IOUT3 = 1mA
IOUT3 = 0.1mA
IOUT3 = 10mA
IOUT3 = 50mA
IOUT3 = 100mA
IOUT3 = 150mA
IOUT3 = 300mA
IOUT3 = 400mA
IOUT3 = 10mA
IOUT3 = 50mA
IOUT3 = 100mA
IOUT3 = 150mA
IOUT3 = 300mA
IOUT3 = 400mA
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4
Input Voltage (V)
Input Voltage (V)
LDO Dropout Characteristics
(VIN = 3.3V; VIN3 = 3.3V to 1V; VOUT3 = 1.2V;
IOUT3 = 0.1mA to 400mA; 25°C)
LDO Load Transient Response
(200mA to 400A; VIN = 3.3V; VIN3 = VOUT2 = 1.7V)
1.210
1.25
1.205
1.200
1.195
1.190
1.185
1.180
1.20
1.15
0.6
0.4
0.2
0.0
IOUT3 = 0.1mA
IOUT3 = 10mA
IOUT3 = 50mA
IOUT3 = 100mA
IOUT3 = 150mA
IOUT3 = 300mA
IOUT3 = 400mA
400mA
200mA
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4
Time (50µs/div)
Input Voltage (V)
w w w . a n a l o g i c t e c h . c o m
2783.2008.03.1.0
11
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
