ADP121 Analog Devices, ADP121 Datasheet - Page 9

• Manufacturer Part Number: ADP121
• Description: 150 mA, Low Quiescent Current, CMOS Linear Regulator in 5-Lead TSOT or 4-Ball WLCSP
• Manufacturer: Analog Devices

Data Sheet
–100
–100
–100
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
0
0
10
10
10
Figure 17. Power Supply Rejection Ratio vs. Frequency
Figure 18. Power Supply Rejection Ratio vs. Frequency
Figure 19. Power Supply Rejection Ratio vs. Frequency
V
V
V
C
V
V
V
C
V
V
V
C
RIPPLE
IN
OUT
RIPPLE
IN
OUT
RIPPLE
IN
OUT
OUT
OUT
OUT
= 5V
= 5V
= 5V
= 1.2V
= 1µF
= 1.8V
= 1µF
= 3.3V
= 1µF
100
100
100
= 50mV
= 50mV
= 50mV
1k
1k
1k
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
150mA
100mA
10mA
1mA
100µA
0µA
150mA
100mA
10mA
1mA
100µA
0µA
150mA
100mA
10mA
1mA
100µA
0µA
10k
10k
10k
100k
100k
100k
1M
1M
1M
10M
10M
10M
Rev. E | Page 9 of 20
Figure 22. Output Noise vs. Load Current and Output Voltage, V
Figure 20. Power Supply Rejection Ratio vs. Frequency at Various Output
Figure 21. Output Noise Spectrum, V
–100
–120
0.1
–20
–40
–60
–80
10
70
60
50
40
30
20
10
0.001
0
1
0
0
10
10
3.3V/150mA
3.3V/100µA
0.01
100
100
Voltages and Load Currents
0.1
1k
FREQUENCY (Hz)
FREQUENCY (Hz)
1.2V/150mA
1.2V/100µA
I
LOAD
1k
10k
1
(mA)
IN
= 5 V, I
100k
10
LOAD
1.8V/150mA
1.8V/100µA
10k
= 10 mA, C
100
1M
1.2V
1.8V
3.3V
IN
ADP121
= 5 V, C
3.3V
2.5V
1.8V
1.5V
1.2V
OUT
100k
1000
10M
= 1 µF
OUT
= 1 μF