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ADP124ACPZ-2.8-R7 データシート(PDF) 9 Page - Analog Devices

部品番号 ADP124ACPZ-2.8-R7
部品情報  5.5 V Input, 500 mA, Low Quiescent Current, CMOS Linear Regulators
PDF  20 Pages
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
Logo AD - Analog Devices

ADP124ACPZ-2.8-R7 データシート(HTML) 9 Page - Analog Devices

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Data Sheet
ADP124/ADP125
Rev. C | Page 9 of 20
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
IOUT = 100µA
VIN = VOUT + 1V
VRIPPLE = 50mV
CIN = COUT = 1µF
IOUT = 1mA
IOUT = 10mA
IOUT = 100mA
IOUT = 300mA
IOUT = 500mA
Figure 19. Power Supply Rejection Ratio vs. Frequency, VOUT= 4.2 V, VIN = 5.2 V
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
VOUT = 2.8V, IOUT = 10mA
VIN = VOUT + 1V
VRIPPLE = 50mV
CIN = COUT = 1µF
VOUT = 3.3V, IOUT = 10mA
VOUT = 4.2V, IOUT = 10mA
VOUT = 2.8V, IOUT = 500mA
VOUT = 3.3V, IOUT = 500mA
VOUT = 4.2V, IOUT = 500mA
Figure 20. Power Supply Rejection Ratio vs. Frequency,
Various Output Voltages and Load Currents
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
VIN = 3.1V, IOUT = 10mA
VIN = 3.3V, IOUT = 10mA
VIN = 3.8V, IOUT = 10mA
VIN = 4.8V, IOUT = 10mA
VIN = 3.1V, IOUT = 500mA
VIN = 3.3V, IOUT = 500mA
VIN = 3.8V, IOUT = 500mA
VIN = 4.8V, IOUT = 500mA
Figure 21. Power Supply Rejection Ratio vs. Headroom Voltage (VIN − VOUT),
VOUT = 2.8 V
0
1
2
3
4
5
10
100
1k
10k
100k
FREQUENCY (Hz)
VOUT = 2.8V
VOUT = 3.3V
VOUT = 4.2V
Figure 22. Output Noise Spectrum, VIN = 5 V
20
25
30
35
40
45
50
55
60
65
70
0.001
0.01
0.1
1
10
100
1k
ILOAD (mA)
VOUT = 2.8V
VOUT = 3.3V
VOUT = 4.2V
Figure 23. Output Noise vs. Load Current and Output Voltage, VIN = 5 V
M40.0µs A CH1
200mA
1
2
T
9.800%
VIN = 4V
VOUT = 3.3V
VOUT
1mA TO 500mA LOAD STEP
CH1
500mA Ω B
W
CH2 50.0mV
B
W
IOUT
Figure 24. Load Transient Response, COUT = 1 μF



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