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ADP221ACBZ2828-R7 Scheda tecnica(PDF) 9 Page - Analog Devices

Il numero della parte ADP221ACBZ2828-R7
Spiegazioni elettronici  Dual, 200 mA, Low Noise, High PSRR Voltage Regulator
PDF  20 Pages
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

ADP221ACBZ2828-R7 Scheda tecnica(HTML) 9 Page - Analog Devices

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Data Sheet
ADP220/ADP221
Rev. H | Page 9 of 20
2.6
2.7
2.8
2.9
3.0
3.1
INPUT VOLTAGE (V)
180
120
140
160
100
80
60
40
20
0
ILOAD = 1mA
ILOAD = 5mA
ILOAD = 10mA
ILOAD = 50mA
ILOAD = 100mA
ILOAD = 200mA
Figure 16. Ground Current vs. Input Voltage (In Dropout)
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
VRIPPLE = 50mV
VIN = 3.8V
VOUT = 2.8V
COUT = 2.2µF
200mA
100mA
10mA
1mA
100µA
Figure 17. Power Supply Rejection Ratio vs. Frequency, 2.8 V
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
VRIPPLE = 50mV
VIN = 4.3V
VOUT = 3.3V
COUT = 1µF
200mA
100mA
10mA
1mA
100µA
Figure 18. Power Supply Rejection Ratio vs. Frequency, 3.3 V
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
–10
–20
–30
–40
–50
–60
–70
–80
–90
–110
–100
VRIPPLE = 50mV
VIN = 2.5V
VOUT = 0.8V
COUT = 1µF
200mA
100mA
10mA
1mA
100µA
Figure 19. Power Supply Rejection Ratio vs. Frequency, 0.8 V
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
3.3V/200mA
0.8V/200mA
1.8V/200mA
3.3V/100µA
0.8V/100µA
1.8V/100µA
Figure 20. Power Supply Rejection Ratio vs. Frequency, at Various Output
Voltages and Load Currents
10
100
1k
10k
100k
FREQUENCY (Hz)
10
0.1
1
0.01
3.3V µV/ Hz
2.8V µV/ Hz
0.8V µV/ Hz
Figure 21. Output Noise Spectrum, VIN = 5 V, ILOAD = 10 mA



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