PRODUCT DATASHEET
AAT2783
SystemPowerTM
Triple Output PMIC: Dual Buck with Low-VIN LDO
Typical Characteristics
Step-Down Converter and LDO Input
Step-Down Converter Switching Frequency
Current vs. Input Voltage
vs. Temperature
(VIN = 3.3V; IOUT1 = 1A; IOUT2 = 0.4A)
1.31
(VEN1 = VEN2 = VEN3 = VIN)
180
170
85°C
1.30
1.29
1.28
1.27
160
150
140
25°C
130
120
VOUT2 = 1.7V
VOUT1 = 1.2V
1.26
110
-40°C
100
2.5
1.25
3
3.5
4
4.5
5
5.5
6
-40
-20
0
20
40
60
80
100
Input Voltage (V)
Temperature (°C)
Step-Down Converter Switching Frequency
vs. Input Voltage
(IOUT1 = 1A; IOUT2 = 0.4A)
3
2
1
0
-1
VOUT2 = 1.7V
VOUT1 = 1.2V
-2
-3
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
w w w . a n a l o g i c t e c h . c o m
6
2783.2008.03.1.0
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
