Datasheet

90
80
70
60
50
40
30
20
10
0
10 100 1k 10k
Frequency (Hz)
PSRR (dB)
100k 1M 10M
I
OUT
= 100mA
I
OUT
= 1mA
I
OUT
= 200mA
C
NR
= 0.01
µ
F
C
OUT
= 2.2
µ
F
90
80
70
60
50
40
30
20
10
0
10 100 1k 10k
Frequency (Hz)
PSRR (dB)
100k 1M 10M
I
OUT
= 1mA
I
OUT
= 100mA
I
OUT
= 200mA
C
NR
= 0.01
µ
F
C
OUT
= 2.2
µ
F
90
80
70
60
50
40
30
20
10
0
10 100 1k 10k
Frequency (Hz)
PSRR (dB)
100k 1M 10M
I
OUT
= 1mA
I
OUT
= 200mA
C
NR
= 0.01
µ
F
C
OUT
= 10.0
µ
F
90
80
70
60
50
40
30
20
10
0
10 100 1k 10k
Frequency (Hz)
PSRR (dB)
100k 1M 10M
I
OUT
= 1mA
I
OUT
= 200mA
C
NR
= 0.01
µ
F
C
OUT
= 10.0
µ
F
90
80
70
60
50
40
30
20
10
0
10 100 1k 10k
Frequency (Hz)
PSRR (dB)
100k 1M 10M
I
OUT
= 200mA
C
NR
= None
C
OUT
= 10.0
µ
F
I
OUT
= 1mA
90
80
70
60
50
40
30
20
10
0
PSRR (dB)
0.0 1.0 1.50.5 2.0 2.5
V
IN
−
V
OUT
(V)
3.0 3.5 4.0
0.1kHz
10kHz
1kHz
100kHz
1MHz
C
NR
= 0.01
µ
F
C
OUT
= 2.2
µ
F
TPS799xx
www.ti.com SBVS056J –JANUARY 2005–REVISED AUGUST 2010
TYPICAL CHARACTERISTICS (continued)
Over operating temperature range (T
J
= –40°C to +125°C), V
IN
= V
OUT(TYP)
+ 0.3V or 2.7V, whichever is greater; I
OUT
= 1mA,
V
EN
= V
IN
, C
OUT
= 2.2mF, C
NR
= 0.01mF, unless otherwise noted. For TPS79901, V
OUT
= 3.0V.
Typical values are at T
J
= +25°C.
TPS799285 POWER-SUPPLY RIPPLE REJECTION vs TPS799285 POWER-SUPPLY RIPPLE REJECTION vs
FREQUENCY (V
IN
– V
OUT
= 0.5V) FREQUENCY (V
IN
– V
OUT
= 0.25V)
Figure 13. Figure 14.
TPS799285 POWER-SUPPLY RIPPLE REJECTION vs TPS799285 POWER-SUPPLY RIPPLE REJECTION vs
FREQUENCY (V
IN
– V
OUT
= 1.0V) FREQUENCY (V
IN
– V
OUT
= 0.25V)
Figure 15. Figure 16.
TPS799285 POWER-SUPPLY RIPPLE REJECTION vs POWER-SUPPLY RIPPLE REJECTION vs
FREQUENCY (V
IN
– V
OUT
= 1.0V) V
IN
– V
OUT
, I
OUT
= 1mA
Figure 17. Figure 18.
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