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ADP172ACBZ-1.2-R7 Fiches technique(PDF) 9 Page - Analog Devices

No de pièce ADP172ACBZ-1.2-R7
Description  300 mA, Low Quiescent Current, CMOS Linear Regulator
PDF  20 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

ADP172ACBZ-1.2-R7 Fiches technique(HTML) 9 Page - Analog Devices

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ADP172
Rev. 0 | Page 9 of 20
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
–30
–40
–50
–60
–70
–80
–90
300mA
200mA
100mA
10mA
1mA
Figure 15. Power Supply Rejection Ratio vs. Frequency, VOUT = 3.0 V
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
–30
–40
–50
–60
–70
–80
–90
3V, 1mA
1.8V, 1mA
0.8V, 1mA
3V, 300mA
1.8V, 300mA
0.8V, 300mA
Figure 16. Power Supply Rejection Ratio vs. Frequency, Various Output
Voltages and Load Currents
0.01
0.1
1
10
10
100
1k
10k
100k
FREQUENCY (Hz)
0.8V
VIN = 3.6V
ILOAD = 10mA
COUT = 1µF
1.8V
3.0V
Figure 17. Output Noise Spectrum
0
10
20
30
40
50
60
70
0.001
0.01
0.1
1
10
100
1000
LOAD CURRENT (mA)
3V
1.8V
0.8V
Figure 18. RMS Noise vs. Load Current and Output Voltage
CH1 200mA Ω
CH2 50.0mV
B
W M40.00µs A CH1
124mA
1
2
T
160.680µs
ILOAD
VOUT
VIN = 3.6V
VOUT = 1.8V
1mA TO 300mA LOAD STEP,
2.5A/µs
Figure 19. Load Transient Response, CIN and COUT = 1 μF
CH1 200mA Ω
CH2 50.0mV
B
W M40.0µs
A CH1
204mA
1
2
T
159.800µs
ILOAD
VOUT
VIN = 3.6V
VOUT = 1.8V
1mA TO 300mA LOAD STEP,
2.5A/µs
Figure 20. Load Transient Response, CIN and COUT = 4.7 μF



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