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ADP124ARHZ-2.7-R7 数据表(PDF) 9 Page - Analog Devices

部件名 ADP124ARHZ-2.7-R7
功能描述  5.5 V Input, 500 mA, Low Quiescent Current, CMOS Linear Regulators
PDF  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP124ARHZ-2.7-R7 数据表(HTML) 9 Page - Analog Devices

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ADP124/ADP125
Rev. 0 | 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 17. 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 18. 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 19. 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 20. 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 21. 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 BW CH2 50.0mV
B
W
IOUT
Figure 22. Load Transient Response, COUT = 1 μF



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