AAT2782_12 Datasheet, PDF (7/22 Pages) Skyworks Solutions Inc. – Triple-Output PMIC Dual Buck with Low-VIN LDO

DATA SHEET
AAT2782
Triple-Output PMIC: Dual Buck with Low-V_IN LDO
Typical Characteristics—Buck Converter 1
Step-Down Converter 1 Efficiency vs. Load
(V_OUT1 = 1.2V; V_IN = 2.7V to 5.5V; L = 1.7µH)
100
90
80
70
60
50
VIN = 2.7V
VIN = 3.3V
40
VIN = 3.6V
30
VIN = 4.2V
20
VIN = 5.0V
VIN = 5.5V
10
0.1
1
10
100
1000
10000
Output Current (mA)
Step-Down Converter 1 DC Regulation
(V_OUT1 = 1.2V; V_IN = 2.7 to 5.5V; L = 1.7µH)
0.5
VIN = 2.7V
VIN = 3.3V
0.3
VIN = 3.6V
VIN = 4.2V
V_IN = 5.0V
0.0
VIN = 5.5V
-0.3
-0.5
0.1
1
10
100
1000
Output Current (mA)
10000
Step-Down Converter 1 V_IH and V_IL
vs. Input Voltage
(V_EN1 = V_IN; V_EN2 = 0V; V_EN3 = 0V)
1.0
V_IH
0.9
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_EN1 = V_IN; V_EN2 = V_EN3 = 0V)
110
100
90
80
70
60
2.5
3
3.5
4
4.5
5
Input Voltage (V)
85°C
25°C
-40°C
5.5
6
Step-Down Converter 1 Line Regulation
(V_OUT1 = 1.2V; I_OUT1 = 0.1mA to 1A; L = 1.7µH)
0.5
0.4
IOUT1 = 0.10mA
0.3
IOUT1 = 10mA
IOUT1 = 100mA
0.2
IOUT1 = 1200mA
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)
Step-Down Converter Output 1 Voltage Error
vs. Temperature
(V_IN = 3.3V; V_OUT1 = 1.2V; I_OUT1 = 1.2A)
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)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
202038A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • June 8, 2012
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