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ADP3303 Ver la hoja de datos (PDF) - Analog Devices

Número de pieza
componentes Descripción
Fabricante
ADP3303
High Accuracy anyCAP™ 200 mA Low Dropout Linear Regulator
AD
Analog Devices AD
ADP3303 Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
5.02
5.01
VOUT = 5V
5.00
4.99
25⍀, 0.47␮F LOAD
4.98
VIN
7.5
7.0
0 20 40 60 80 100 120 140 160 180 200
TIME – ␮s
Figure 11. Line Transient Response
5.02
5.01
VOUT = 5V
5.00
4.99
5k⍀, 0.47␮F LOAD
4.98
VIN
7.5
7.0
0 40 80 120 160 200 240 280 320 360 400
TIME – ␮s
Figure 12. Line Transient Response
ADP3303
3.310
3.305
VOUT = 3.3V
3.300
VOUT
3.295
3.290
200
CL = 0.47␮F
I(VOUT)
10
0
200
400 600 800 1000
TIME – ␮s
Figure 13. Load Transient for 10 mA
to 200 mA Pulse
3.310
3.305
VOUT = 3.3V
3.300
VOUT
3.295
3.290
200
CL = 10␮F
I(VOUT)
10
0
200
400 600
800 1000
TIME – ␮s
Figure 14. Load Transient for
10 mA to 200 mA Pulse
3.5
0
400
300
200
100
0
0
3.3V
VOUT
VIN = 7V
IOUT
1
2
3
4
5
TIME – sec
Figure 15. Short Circuit Current
4 CL = 0.47␮F, RL = 3.3k⍀
VIN = 7V
3.3V
VOUT
3
CL = 10␮F, RL = 16.5⍀
2
CL = 10␮F, RL = 3.3k⍀
1
0
5
SD
3
0
0
40
80
120
160
200
TIME – ␮s
Figure 16. Turn On
4
C = 0.47␮F
R = 16.5⍀ ON 3.3V OUTPUT
3
2
VOUT
1
0
5
VSD
0
0
5
10
15
20
25
TIME – ␮s
Figure 17. Turn Off
0
–10
a. 0.47␮F, RL = 33k⍀
b. 0.47␮F, RL = 16.5⍀
–20 c. 10␮F, RL = 33k⍀
–30 d. 10␮F, RL = 16.5⍀
VOUT = 3.3V
b
–40
–50
d
–60
a
–70 b d
c
–80
–90
ac
–100
10 100 1k
10k 100k 1M 10M
FREQUENCY – Hz
Figure 18. Power Supply Ripple
Rejection
10
0.47␮F BYPASS
PIN 7, 8 TO PIN 3
VOUT = 5V, CL = 0.47␮F,
IL = 1mA, CNR = 0
1
VOUT = 3.3V, CL = 0.47␮F,
IL = 1mA, CNR = 0
0.1
VOUT = 2.7-5.0V, CL = 10␮F,
IL = 1mA, CNR = 10nF
0.01
100
1k
10k
FREQUENCY – Hz
100k
Figure 19. Output Noise Density
REV. A
–5–

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