AAT1171 Datasheet, PDF (7/22 Pages) Advanced Analogic Technologies – 600mA Voltage-Scaling Step-Down Converter for RF Power Amplifiers with Bypass Switch

Typical Characteristics
Output Voltage vs. Supply Voltage
(LL Mode; V_OUT = 1.5V)
1.514
1.510
1.506
1.502
I_OUT = 50mA
I_OUT = 300mA
1.498
I_OUT = 600mA
1.494
2.7 2.9 3.1 3.3 3..5 3.7 3..9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
Supply Voltage (V)
DATA SHEET
AAT1171
600mA Voltage-Scaling Step-Down Converter
for RF Power Amplifiers with Bypass Switch
Output Voltage vs. Supply Voltage
(PWM Mode; V_OUT = 1.5V)
1.514
1.510
1.506
1.502
1.498
I_OUT = 50mA
I_OUT = 300mA
I_OUT = 600mA
1.494
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
Supply Voltage (V)
Output Voltage vs. Temperature
(V_IN = 3.6V; V_OUT = 1.8V; V_DAC = 0.6V; R_L = 10)
1.0
0.5
0.0
-0.5
-1.0
-1.5
-40
-15
10
35
60
85
Temperature (°C)
Bypass Mode Dropout Voltage
vs. Load Current
0.05
0.00
-0.05
-0.10
-0.15
-0.20
-0.25
-0.30
0.1
1
10
100
1000
Load Current (mA)
Supply Current vs. Supply Voltage
(No Load; LL Mode)
70
65
60
V_OUT = 1.8V
55
50
45
40
V_OUT = 0.6V
35
30
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Supply Voltage (V)
Supply Current vs. Supply Voltage
(No Load; PWM Mode)
7.0
6.5
6.0
V_OUT = 1.8V
5.5
5.0
4.5
4.0
3.5
3.0
V_OUT = 0.6V
2.5
2.0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Supply Voltage (V)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
201999B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 20, 2013
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