ADP172 Analog Devices, Inc., ADP172 Datasheet - Page 8

• Manufacturer Part Number: ADP172
• Description: 300 Ma, Low Quiescent Current, Cmos Linear Regulator
• Manufacturer: Analog Devices, Inc.

ADP172
Figure 9. Shutdown Current vs. Temperature at Various Input Voltages
1.85
1.80
1.75
1.70
1.65
1.60
1.55
1.50
70
60
50
40
30
20
10
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0.1
Figure 11. Output Voltage vs. Input Voltage (in Dropout)
0
–50
1.55
T
A
Figure 10. Dropout Voltage vs. Load Current
= 25°C
V
V
V
V
V
V
V
V
–25
1.60
IN
IN
IN
IN
IN
IN
IN
IN
= 2.1V
= 2.3V
= 2.7V
= 2.9V
= 3.2V
= 3.4V
= 3.5V
= 3.6V
1
0
1.65
LOAD CURRENT (mA)
TEMPERATURE (°C)
25
1.70
V
10
IN
50
(V)
1.75
75
I
I
I
I
I
LOAD
LOAD
LOAD
LOAD
LOAD
1.80
100
100
= 1mA
= 10mA
= 100mA
= 200mA
= 300mA
1.85
125
1000
1.90
Rev. A | Page 8 of 20
Figure 13. Power Supply Rejection Ratio vs. Frequency, V
Figure 14. Power Supply Rejection Ratio vs. Frequency, V
–30
–40
–50
–60
–70
–80
–90
–30
–40
–50
–60
–70
–80
–90
400
350
300
250
200
150
100
50
0
Figure 12. Ground Current vs. Input Voltage (in Dropout)
1.5
10
10
300mA
200mA
100mA
10mA
1mA
300mA
200mA
100mA
10mA
1mA
100
100
I
I
I
I
I
LOAD
LOAD
LOAD
LOAD
LOAD
1.6
= 1mA
= 10mA
= 100mA
= 200mA
= 300mA
1k
1k
FREQUENCY (Hz)
FREQUENCY (Hz)
1.7
V
IN
10k
10k
(V)
1.8
100k
100k
1.9
1M
1M
OUT
OUT
= 0.8 V
= 1.8 V
10M
10M
2.0