ADP120(RevB) Просмотр технического описания (PDF) - Analog Devices
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ADP120 Datasheet PDF : 20 Pages
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0
100mA
–10
10mA
1mA
–20
100µA
NO LOAD
–30
VRIPPLE = 50mV
VIN = 5V
VOUT = 1.2V
COUT = 1µF
–40
–50
–60
–70
–80
–90
–100
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 17. Power Supply Rejection Ratio vs. Frequency
0
100mA
–10
10mA
1mA
–20
100µA
NO LOAD
–30
VRIPPLE = 50mV
VIN = 5V
VOUT = 1.8V
COUT = 1µF
–40
–50
–60
–70
–80
–90
–100
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 18. Power Supply Rejection Ratio vs. Frequency
0
100mA
–10
10mA
1mA
–20
100µA
NO LOAD
–30
VRIPPLE = 50mV
VIN = 5V
VOUT = 3.3V
COUT = 1µF
–40
–50
–60
–70
–80
–90
–100
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 19. Power Supply Rejection Ratio vs. Frequency
ADP120
0
3.3V/100mA
3.3V/100µA
–20
1.2V/100mA
1.2V/100µA
1.8V/100mA
1.8V/100µA
–40
–60
–80
–100
–120
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 20. Power Supply Rejection Ratio vs. Frequency,
Various Output Voltages and Load Currents
10
VOUT = 3.3V
VOUT = 1.8V
1
VOUT = 1.2V
0.1
0.01
10
100
1k
10k
FREQUENCY (Hz)
100k
Figure 21. Output Noise Spectrum, VIN = 5 V, ILOAD = 10 mA, COUT = 1 μF
70
VOUT = 3.3V
60
VOUT = 2.5V
50
VOUT = 1.8V
40
VOUT = 1.5V
VOUT = 1.2V
30
20
10
0
0.001
0.01
0.1
1
ILOAD (mA)
10
100
Figure 22. Output Noise vs. Load Current and Output Voltage
VIN = 5 V, COUT = 1 μF
Rev. B | Page 9 of 20
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