AAT2783_12 Datasheet, PDF (9/22 Pages) Skyworks Solutions Inc. – Triple-Output PMIC Dual Buck with Low-VIN LDO

DATA SHEET
AAT2783
Triple-Output PMIC: Dual Buck with Low-V_IN LDO
Typical Characteristics—Buck Converter 2
Step-Down Converter 2 Efficiency vs. Load
(V_OUT2 = 1.7V; L = 2.2µH)
100
90
80
70
60
50
VIN = 2.7V
40
VIN = 3.3V
VIN = 3.6V
30
VIN = 4.2V
VIN = 5V
20
VIN = 5.5V
10
0.1
1
10
100
1000
10000
Output Current (mA)
Step-Down Converter 2 DC Regulation
(V_OUT2 = 1.7V; V_IN = 2.7V to 5.5V; L = 2.2µH)
0.50
0.25
0.00
-0.25
-0.50
-0.75
-1.00
0.1
VIN = 2.7V
V_IN = 3.3V
VIN = 3.6V
VIN = 4.2V
VIN = 5V
VIN = 5.5V
1
10
100
1000
10000
Output Current (mA)
Step-Down Converter 2 V_IH and V_IL
vs. Input Voltage
(V_EN1 = 0V; V_EN2 = V_IN; V_EN3 = 0V)
1.0
0.9
V_IH
0.8
V_IL
0.7
0.6
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
Step-Down Converter 1 Input Current
vs. Input Voltage
(V_EN2 = V_IN; V_EN1 = V_EN3 = 0V)
90
85°C
80
70
25°C
60
-40°C
50
2.5
3
3.5
4
4.5
5
5.5
6
Input Voltage (V)
Step-Down Converter Output 2 Voltage Error
vs. Temperature
(V_IN = 3.3V; V_OUT2 = 1.7V, I_OUT2 = 400mA)
1.00
0.75
0.50
0.25
0.00
-0.25
-0.50
-0.75
-1.00
-50
-25
0
25
50
75
100
Temperature (°C)
Step-Down Converter 2 Line Regulation
(V_OUT2 = 1.7V; I_OUT2 = 0.1mA to 400mA; L = 2.2µH)
0.5
0.4
IOUT2 = 0.10mA
0.3
IOUT2 = 10mA
IOUT2 = 100mA
0.2
IOUT2 = 400mA
0.1
0.0
-0.1
-0.2
-0.3
-0.4
-0.5
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
202039A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • June 8, 2012
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