ADP122 데이터 시트보기 (PDF) - Analog Devices
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ADP122 Datasheet PDF : 24 Pages
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ADP122/ADP123
0.50
0.45
0.40
0.35
0.30
0.25
0.20
VIN = 3.6V
VIN = 3.8V
VIN = 4.2V
VIN = 4.4V
VIN = 5.0V
VIN = 5.2V
VIN = 5.4V
VIN = 5.5V
0.15
0.10
–50 –25
0
25
50
75
TEMPERATURE (°C)
100 125
Figure 15. Shutdown Current vs. Temperature at Various Input Voltages
70
60
50
40
30
20
10
0
1
10
100
1000
IOUT (mA)
Figure 16. Dropout Voltage vs. Load Current
450
400
350
300
250
200
150
100
50
0
3.05
IOUT = 10mA
IOUT = 100mA
IOUT = 150mA
IOUT = 300mA
3.10 3.15 3.20 3.25 3.30
VIN (V)
3.35
3.40
3.45
Figure 17. Ground Current vs. Input Voltage (in Dropout)
Data Sheet
3.35
3.30
3.25
3.20
IOUT = 10mA
IOUT = 100mA
IOUT = 150mA
IOUT = 300mA
3.15
3.10
3.05
3.00
3.05 3.10 3.15 3.20 3.25 3.30
VIN (V)
3.35 3.40
Figure 18. Output Voltage vs. Input Voltage (in Dropout)
–10
–20
IOUT = 100µA
–30
IOUT = 1mA
IOUT = 10mA
–40
IOUT = 100mA
IOUT = 200mA
–50
IOUT = 300mA
–60
–70
–80
VIN = VOUT + 0.5V
–90
VRIPPLE = 50mV
CIN = COUT 1µF
–100
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
10M
Figure 19. Power Supply Rejection Ratio vs. Frequency, VOUT = 2.8 V, VIN = 3.3 V
–10
–20
IOUT = 100µA
–30
IOUT = 1mA
IOUT = 10mA
–40
IOUT = 100mA
IOUT = 200mA
–50
IOUT = 300mA
–60
–70
–80
VIN = VOUT + 0.5V
–90
VRIPPLE = 50mV
CIN = COUT 1µF
–100
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
10M
Figure 20. Power Supply Rejection Ratio vs. Frequency, VOUT = 3.3 V, VIN = 3.8 V
Rev. E | Page 8 of 24
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