ADP123 Analog Devices, ADP123 Datasheet - Page 8

• Manufacturer Part Number: ADP123
• Description: 5.5 V Input, 300 mA, Low Quiescent Current, CMOS Linear Regulator, Adjustable Output Voltage
• Manufacturer: Analog Devices

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