ADP1720 Analog Devices, ADP1720 Datasheet - Page 9

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

–100
–10
–20
–30
–40
–50
–60
–70
–80
–90
1
0
Figure 15. Power Supply Rejection Ratio vs. Frequency
10
V
V
C
C
LOAD STEP FROM 2.5mA TO 47.5mA
C
V
V
V
IN
OUT
IN
OUT
IN
OUT
RIPPLE
OUT
= 12V
= 1µF
= 8V
= 1.6V
= 1µF
= 5V
= 1µF
100
V
Figure 16. Load Transient Response
= 50mV
OUT
(5.0 V Fixed Output)
1k
TIME (20µs/DIV)
FREQUENCY (Hz)
10k
100µA
100k
1mA
10mA
1M
10M
Rev. A | Page 9 of 16
1
2
1
2
V
C
C
I
LOAD
V
OUT
IN
OUT
V
IN
OUT
Figure 17. Line Transient Response
= 1µF
STEP FROM 6V TO 7V
= 5V
= 1µF
= 50mA
Figure 18. Start-Up Time
EN
V
OUT
TIME (100µs/DIV)
TIME (40µs/DIV)
V
V
C
C
I
LOAD
IN
OUT
IN
OUT
= 12V
= 1µF
= 5V
ADP1720
= 1µF
= 50mA