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| AAT1171 Datasheet, PDF (7/22 Pages) Advanced Analogic Technologies – 600mA Voltage-Scaling Step-Down Converter for RF Power Amplifiers with Bypass Switch | |||
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AAT1171
600mA Voltage-Scaling Step-Down Converter
for RF Power Amplifiers with Bypass Switch
Typical Characteristics
Efficiency vs. Output Current
(PWM Mode; VOUT = 2.5V)
100
90
80
70
60
50
40
30
20
10
0
0.1
VIN = 3.0V
VIN = 4.2V
VIN = 5.0V
1
10
100
1000
Output Current (mA)
1.0
0.5
0.0
-0.5
-1.0
0.1
Load Regulation
(PWM Mode; VOUT = 2.5V)
VIN = 5.0V
VIN = 3.0V
VIN = 4.2V
1
10
100
1000
Output Current (mA)
Efficiency vs. Output Current
(LL Mode; VOUT = 1.8V)
100
90 VIN = 2.7V
80
70
VIN = 4.2V
60
VIN = 3.6V
Load Regulation
(LL Mode; VOUT = 1.8V)
1.0
0.5
VIN = 3.6V
VIN = 4.2V
0.0
50
-0.5
VIN = 2.7V
40
30
0.1
1
10
100
1000
-1.0
0
1
10
100
1000
Output Current (mA)
Output Current (mA)
Efficiency vs. Output Current
(PWM Mode; VOUT = 1.8V)
100
90
80
VIN = 2.7V
70
60
VIN = 3.6V
50
40
30
VIN = 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; VOUT = 1.8V)
VIN = 3.6V
VIN = 4.2V
VIN = 2.7V
1
10
100
1000
Output Current (mA)
1171.2006.06.1.0
7
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