Datasheet

ADP122/ADP123 Data Sheet
Rev. E | Page 8 of 24
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
–50 –25 0 25 50 75 100 125
TEMPERATURE (°C)
SHUTDOWN CURRENT (µA)
V
IN
= 3.6V
V
IN
= 3.8V
V
IN
= 4.2V
V
IN
= 4.4V
V
IN
= 5.0V
V
IN
= 5.2V
V
IN
= 5.4V
V
IN
= 5.5V
08399-011
Figure 15. Shutdown Current vs. Temperature at Various Input Voltages
0
10
20
30
40
50
60
70
1 10 100 1000
I
OUT
(mA)
DROPOUT (mV)
08399-012
Figure 16. Dropout Voltage vs. Load Current
0
50
100
150
200
250
300
350
400
450
3.05 3.10 3.15 3.20 3.25 3.30 3.35 3.40 3.45
V
IN
(V)
I
GND
(µA)
I
OUT
= 10mA
I
OUT
= 100mA
I
OUT
= 150mA
I
OUT
= 300mA
08399-014
Figure 17. Ground Current vs. Input Voltage (in Dropout)
3.00
3.05
3.10
3.15
3.20
3.25
3.30
3.35
3.05 3.10 3.15 3.20 3.25 3.30 3.35 3.40
V
IN
(V)
V
OUT
(V)
I
OUT
= 10mA
I
OUT
= 100mA
I
OUT
= 150mA
I
OUT
= 300mA
08399-013
Figure 18. Output Voltage vs. Input Voltage (in Dropout)
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
10 100 1k 10k 100k 1M
10M
FREQUENCY (Hz)
PSRR (dB)
I
OUT
= 100µA
V
IN
= V
OUT
+ 0.5V
V
RIPPLE
= 50mV
C
IN
= C
OUT
1µF
I
OUT
= 1mA
I
OUT
= 10mA
I
OUT
= 100mA
I
OUT
= 200mA
I
OUT
= 300mA
08399-015
Figure 19. Power Supply Rejection Ratio vs. Frequency, V
OUT
= 2.8 V, V
IN
= 3.3 V
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
PSRR (dB)
I
OUT
= 100µA
V
IN
= V
OUT
+ 0.5V
V
RIPPLE
= 50mV
C
IN
= C
OUT
1µF
I
OUT
= 1mA
I
OUT
= 10mA
I
OUT
= 100mA
I
OUT
= 200mA
I
OUT
= 300mA
08399-016
Figure 20. Power Supply Rejection Ratio vs. Frequency, V
OUT
= 3.3 V, V
IN
= 3.8 V