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LP2985_06 Datasheet, PDF (11/25 Pages) Texas Instruments – 150-mA LOW-NOISE LOW-DROPOUT REGULATOR WITH SHUTDOWN | |||
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LP2985
150-mA LOW-NOISE LOW-DROPOUT REGULATOR
WITH SHUTDOWN
SLVS522J â JULY 2004 â REVISED AUGUST 2006
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
CIN = 1 µF, COUT = 4.7 µF, VIN = VOUT(NOM) + 1 V, TA = 25°C, ON/OFF pin tied to VIN (unless otherwise specified)
LOAD TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE
3.4
200
3.4
200
3.38
150
3.38
150
3.36
100
3.36
100
3.34
3.32
3.3
3.28
3.26
3.24
3.22
IL
VO = 3.3 V
Cbyp = 10 nF
âIL = 100 mA
VO
20 µs/div"
Figure 17.
50
0
â50
â100
â150
â200
â250
3.34
3.32
3.3
3.28
3.26
3.24
3.22
IL
VO = 3.3 V
Cbyp = 10 nF
âIL = 150 mA
VO
20 µs/div"
Figure 18.
50
0
â50
â100
â150
â200
â250
LOAD TRANSIENT RESPONSE
3.4
200
3.38
150
3.36
100
3.34
3.32
3.3
3.28
VO = 3.3 V
Cbyp = 0 nF
âIL = 150 mA
IL
50
0
â50
VO
â100
3.26
â150
3.24
â200
3.22
â250
20 µs/div"
Figure 19.
LINE TRANSIENT RESPONSE
3.41
5.5
3.39
3.37
3.35
3.33
VO = 3.3 V
Cbyp = 0 nF
IO = 150 mA
5
VI
4.5
4
3.5
3.31
VO
3
3.29
2.5
3.27
2
20 µs/div"
Figure 20.
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