ADP1720 Analog Devices, ADP1720 Datasheet - Page 8

• Manufacturer Part Number: ADP1720
• Description: 50 mA, High Voltage, Micropower Linear Regulator
• Manufacturer: Analog Devices

ADP1720
5.05
5.00
4.95
4.90
4.85
4.80
4.75
4.70
4.65
4.60
250
200
150
100
300
50
Figure 12. Output Voltage vs. Input Voltage (in Dropout)
0
4.9
1
Figure 11. Dropout Voltage vs. Load Current
I
LOAD
= 1mA
5.0
I
LOAD
5.1
I
LOAD
I
LOAD
V
= 10mA
IN
10
I
LOAD
(mA)
(V)
= 25mA
5.2
= 50mA
5.3
1
5.4
00
Rev. A | Page 8 of 16
–100
–10
–20
–30
–40
–50
–60
–70
–80
–90
3.5
3.0
2.5
2.0
1.5
1.0
0.5
Figure 13. Ground Current vs. Input Voltage (in Dropout)
0
0
4.9
Figure 14. Power Supply Rejection Ratio vs. Frequency
10
V
V
C
V
I
1mA
IN
OUT
OUT
RIPPLE
LOAD
= 8V
= 1.6V
= 1µF
=
100
= 50mV
5.0
(1.6 V Adjustable Output)
1k
I
10mA
LOAD
FREQUENCY (Hz)
5.1
=
V
IN
10k
(V)
I
25mA
LOAD
5.2
100µA
100k
=
1mA
I
50mA
5.3
LOAD
10mA
1M
=
10M
5.4