TPS717xx
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SBVS068E – FEBRUARY 2006 – REVISED MAY 2008
TYPICAL CHARACTERISTICS (continued)
Over operating temperature range (T
J
= –40°C to +125°C), V
IN
= V
OUT(TYP)
+ 0.5V or 2.5V, whichever is greater; I
OUT
= 0.5mA,
V
EN
= V
IN
, C
OUT
= 1.0µF, C
NR
= 0.01µF, unless otherwise noted. For TPS71701, V
OUT
= 2.8V.
Typical values are at T
J
= +25°C.
POWER-SUPPLY RIPPLE REJECTION vs
(V
IN
– V
OUT
)
80
70
60
PSRR (dB)
POWER-SUPPLY RIPPLE REJECTION vs
(V
IN
– V
OUT
)
80
70
1kHz
1kHz
10kHz
100kHz
1MHz
PSRR (dB)
60
100kHz
50
40
30
20
10
0
10kHz
50
40
30
20
10
0
0
0.5
1.0
1.5
2.0
2.5
V
IN
-
V
OUT
(V)
3.0
3.5
4.0
I
OUT
= 10mA
C
OUT
= 1
m
F
C
NR
= 10nF
1MHz
I
OUT
= 75mA
C
OUT
= 1
m
F
C
NR
= 10nF
0
0.5
1.0
1.5
2.0
2.5
V
IN
-
V
OUT
(V)
3.0
3.5
4.0
Figure 21.
POWER-SUPPLY RIPPLE REJECTION vs
(V
IN
– V
OUT
)
80
70
60
10kHz
PSRR (dB)
Figure 22.
OUTPUT SPECTRAL NOISE DENSITY vs
OUTPUT CURRENT
16
14
12
I
OUT
= 10mA
10
8
6
4
2
0
100
1k
Frequency (Hz)
10k
100k
I
OUT
= 150mA
C
OUT
= 1
m
F
C
NR
= 10nF
1kHz
100kHz
Output Noise Density (
m
V/
Ö
Hz)
50
40
30
20
10
0
0
0.5
1.0
1.5
2.0
2.5
V
IN
-
V
OUT
(V)
I
OUT
= 150mA
C
OUT
= 1
m
F
C
NR
= 10nF
3.0
3.5
4.0
1MHz
Figure 23.
OUTPUT SPECTRAL NOISE DENSITY vs
OUTPUT CAPACITANCE
Output Spectral Noise Density (
m
V/
Ö
Hz)
16
30
25
20
15
10
5
0
100
1k
14
12
10
8
6
4
2
0
100
1k
Frequency (Hz)
10k
100k
C
OUT
= 1
m
F
Figure 24.
OUTPUT SPECTRAL NOISE DENSITY vs
NOISE REDUCTION
I
OUT
= 10mA
C
OUT
= 1
m
F
Output Noise Density (
m
V/
Ö
Hz)
C
OUT
= 10
m
F
I
OUT
= 10mA
C
NR
= 10nF
C
NR
= 10nF
C
NR
= 100nF
C
NR
= 0nF
C
NR
= 1nF
10k
Frequency (Hz)
100k
Figure 25.
Figure 26.
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