AAT1171 Datasheet, PDF (6/22 Pages) Advanced Analogic Technologies – 600mA Voltage-Scaling Step-Down Converter for RF Power Amplifiers with Bypass Switch

Typical Characteristics
Efficiency vs. Output Current
(PWM Mode; V_OUT = 2.5V)
100
90
80
70
60
50
40
30
20
10
0
0.1
V_IN = 3.0V
V_IN = 4.2V
V_IN = 5.0V
1
10
100
1000
Output Current (mA)
DATA SHEET
AAT1171
600mA Voltage-Scaling Step-Down Converter
for RF Power Amplifiers with Bypass Switch
1.0
0.5
0.0
-0.5
-1.0
0.1
Load Regulation
(PWM Mode; V_OUT = 2.5V)
V_IN = 5.0V
V_IN = 3.0V
V_IN = 4.2V
1
10
100
1000
Output Current (mA)
Efficiency vs. Output Current
(LL Mode; V_OUT = 1.8V)
100
90 ^{VIN = 2.7V}
80
70
V_IN = 4.2V
60
V_IN = 3.6V
50
40
30
0.1
1
10
100
1000
Output Current (mA)
Load Regulation
(LL Mode; V_OUT = 1.8V)
1.0
0.5
V_IN = 3.6V
V_IN = 4.2V
0.0
-0.5
V_IN = 2.7V
-1.0
0
1
10
100
1000
Output Current (mA)
Efficiency vs. Output Current
(PWM Mode; V_OUT = 1.8V)
100
90
80
V_IN = 2.7V
70
60
V_IN = 3.6V
50
40
30
V_IN = 4.2V
20
10
0
0.1
1
10
100
1000.
Output Current (mA)
1.0
0.5
0.0
-0.5
-1.0
0.1
Load Regulation
(PWM Mode; V_OUT = 1.8V)
V_IN = 3.6V
V_IN = 4.2V
V_IN = 2.7V
1
10
100
1000
Output Current (mA)
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6
201999B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 20, 2013