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AAT1171 Datasheet(PDF) 9 Page - Advanced Analogic Technologies

Part No. AAT1171
Description  600mA Voltage-Scaling Step-Down Converter for RF Power Amplifiers with Bypass Switch
Download  22 Pages
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Maker  ANALOGICTECH [Advanced Analogic Technologies]
Homepage  http://www.analogictech.com
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AAT1171 Datasheet(HTML) 9 Page - Advanced Analogic Technologies

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Typical Characteristics
Heavy Load Switching Waveform
(VIN = 3.6V; VOUT = 1.8V; RL = 3
Ω; C
OUT = 4.7µF; L = 2.2µH)
Time (200ns/div)
VOUT
(AC coupled)
20mV/div
IL
200mA/div
VLX
2V/div
0
0
Output Voltage vs. DAC Voltage
(VIN = 4.2V; LL Mode)
DAC Voltage (V)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0.2
0.4
0.6
0.8
1.0
1.2
1.4
25°C
85°C
-40°C
Switching Frequency vs. Temperature
(VIN = 3.6V; VOUT = 1.8V; RL = 10)
Temperature (
°°C)
1.90
1.92
1.94
1.96
1.98
2.00
2.02
2.04
2.06
-40.0
-20.0
0.0
20.0
40.0
60.0
80.0
LL
PWM
Bypass R
DS(ON) vs. Input Voltage
Input Voltage (V)
0
20
40
60
80
100
120
140
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
TJ = 25°C
TJ = 85°C
TJ = 120°C
P-Channel R
DS(ON) vs. Input Voltage
Input Voltage (V)
2.7
3.1
3.5
3.9
4.5
4.9
5.5
2.9
3.3
3.7
4.1 4.3
4.7
5.1 5.3
0
50
100
150
200
250
300
350
400
TJ = 120°C
TJ = 85°C
TJ = 25°C
AAT1171
600mA Voltage-Scaling Step-Down Converter
for RF Power Amplifiers with Bypass Switch
1171.2006.06.1.0
9


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