Datasheet

ADP3309
Rev. C | Page 8 of 12
3.32
3.31
3.30
3.29
3.28
100
10
0 100 200 300 400 500
V
OUT
= 3.3V
C
L
= 4.7µF
I
OUT
TIME (µs)
VOLTSmA
00141-016
Figure 16. Load Transient
300
200
100
0
4
2
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
V
OUT
I
OUT
V
OUT
= 3.3V
TIME (Seconds)
VOLTS mA
00141-017
Figure 17. Short-Circuit Current
4
3
2
1
0
0
3
0 20 40 60 80 100
C
L
= 0.47µF
C
L
= 4.7µF
V
OUT
V
OUT
= 3.3V
R
L
= 33Ω
3.3V
3V
V
SD
TIME (µs)
VOLTS
00141-018
Figure 18. Turn-On
4
3
2
1
0
3
0
0102030405
0
V
OUT
= 3.3V
R
L
= 33Ω
C
L
= 0.47µF
3.3V
V
SD
TIME (µs)
VOLTS
00141-019
Figure 19. Turn-Off
–30
–40
–50
–60
–70
–80
–90
–100
10 100 1k 10k 100k 1M 10M
0
–10
–20
V
OUT
= 3.3V
a. 0.47µF, R
L
= 33kΩ
b. 0.47µF, R
L
= 33Ω
c. 10µF, R
L
= 33kΩ
d. 10µF, R
L
= 33Ω
a
b
c
d
FREQUENCY (Hz)
RIPPLE REJECTION (dB)
00141-020
b
d
a c
Figure 20. Power Supply Ripple Rejection
10
1
0.1
0.01
100 1k 10k 100k
FREQUENCY (Hz)
VOLTAGE NOISE SPECTRAL DENSITY (µV/
√
Hz)
00141-021
V
OUT
= 3.3V, C
L
= 0.47µF
I
L
= 1mA
Figure 21. Output Noise Density