Datasheet

ADP3303 Data Sheet
Rev. D | Page 8 of 16
3.310
3.305
3.290
200
10
3.300
3.295
V
OUT
= 3.3V
I (V
OUT
)
V
OUT
C
L
= 10µF
TIME (µs)
10002000600400 800
(V)
(mA)
10335-016
Figure 16. Load Transient for 10 mA to 200 mA Pulse
(V)
3.5
0
50
4321
0
300
100
400
200
3.3V
(mA)
V
OUT
I
OUT
V
IN
= 7V
TIME (Seconds)
10335-017
Figure 17. Short Circuit Current
TIME (µs)
VOL
T
AGE (V)
200400 16012080
4
1
0
5
0
3
2
3
C
L
= 0.47µF, R
L
= 3.3kΩ
3.3V
V
OUT
SD
V
IN
= 7V
C
L
= 10µF, R
L
= 3.3kΩ
C
L
= 10µF, R
L
= 16.5kΩ
10335-018
Figure 18. Turn On
4
1
250 5 101520
3
2
0
0
5
V
OUT
V
SD
C = 0.47µF
R = 16.5Ω ON 3.3V OUTPUT
VOL
T
AGE (V)
TIME (µs)
10335-019
Figure 19. Turn Off
FREQUENCY (Hz)
RIPPLE REJECTION (dB)
0
–100
10M10010
1k 10k 100k 1M
–10
–60
–70
–80
–90
–20
–30
–50
–40
b
a
V
OUT
= 3.3V
a. 0.47µF, R
L
= 33kΩ
b. 0.47µF, R
L
= 16.5Ω
c. 10µF, R
L
= 33kΩ
d. 10µF, R
L
= 16.5Ω
b
d
a
c
c
d
10335-020
Figure 20. Power Supply Ripple Rejection
FREQUENCY (Hz)
VOLTAGE NOISE SPECTRAL DENSITY (µV/√Hz)
10
1
0.01
100k1k100
10k
0.1
0.47µF BYPASS
PIN 7, 8 TO PIN 3
V
OUT
= 5V, C
L
= 0.47µF,
I
L
= 1mA, C
NR
= 0
V
OUT
= 3.3V, C
L
= 0.47µF,
I
L
= 1mA, C
NR
= 0
V
OUT
= 2.7 TO 5V, C
L
= 10µF,
I
L
= 1mA, C
NR
= 10nF
10335-021
Figure 21. Output Noise Density
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