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AAT1171 Datasheet(PDF) 10 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) 10 Page - Advanced Analogic Technologies

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Typical Characteristics
Bypass Transient Response
(LL Mode; VIN = 3.6V; RL = 10
Ω; C
OUT = 4.7µF; L = 2.2µH)
Time (25µs/div)
VOUT
1V/div
VBYP
1V/div
0
0
3.5V
0.6V
Bypass Transient Response
(PWM Mode; VIN = 3.6V; RL = 10
Ω; C
OUT = 4.7µF; L = 2.2µH)
Time (25µs/div)
VOUT
1V/div
VBYP
1V/div
0
0
3.5V
0.6V
DAC Transient Response in LL Mode
(VIN = 3.6V; RL = 10
Ω; C
OUT = 4.7µF; L = 2.2µH)
Time (25µs/div)
VOUT
1V/div
VDAC
0.5V/div
0
0
3.3V
0.6V
1.2V
0.2V
DAC Transient Response in PWM Mode
(VIN = 3.6V; RL = 10
Ω; C
OUT = 4.7µF; L = 2.2µH)
Time (25µs/div)
VOUT
1V/div
VDAC
0.5V/div
0
0
3.3V
0.6V
1.2V
0.2V
Light Load Switching Waveform
(LL Mode; VIN = 4.2V; VOUT = 0.6V; RL = 10
Ω;
COUT = 4.7µF; L = 2.2µH)
Time (1µs/div)
VOUT
(AC coupled)
20mV/div
IL
200mA/div
VLX
2V/div
0
0
Light Load Switching Waveform
(PWM Mode; VIN = 4.2V; VOUT = 0.6V; RL = 10
Ω;
COUT = 4.7µF; L = 2.2µH)
Time (200ns/div)
VOUT
(AC coupled)
20mV/div
IL
100mA/div
VLX
2V/div
0
0
AAT1171
600mA Voltage-Scaling Step-Down Converter
for RF Power Amplifiers with Bypass Switch
10
1171.2006.06.1.0


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