PRODUCT DATASHEET
AAT2783
SystemPower
TM
Typical Characteristics
Step-Down Converter and LDO Input
Current vs. Input Voltage
180
Triple Output PMIC: Dual Buck with Low-V
IN
LDO
Step-Down Converter Switching Frequency
vs. Temperature
Switching Frequency (MHz)
(V
IN
= 3.3V; I
OUT1
= 1A; I
OUT2
= 0.4A)
1.31
1.30
1.29
1.28
1.27
1.26
1.25
-40
(V
EN1
= V
EN2
= V
EN3
= V
IN
)
Input Current (µA)
170
160
150
140
130
120
110
100
2.5
3
85°C
25°C
-40°C
3.5
4
4.5
5
5.5
6
V
OUT2
= 1.7V
V
OUT1
= 1.2V
-20
0
20
40
60
80
100
Input Voltage (V)
Temperature (°C)
Step-Down Converter Switching Frequency
vs. Input Voltage
(I
OUT1
= 1A; I
OUT2
= 0.4A)
Frequency Variation (%)
3
2
1
0
-1
-2
-3
2.7
V
OUT2
= 1.7V
V
OUT1
= 1.2V
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
6
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2783.2008.03.1.0
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