Datasheet

100
90
80
70
60
50
40
30
20
10
0
Power-SupplyRejectionRatio(dB)
10 100
1k 10k 100k 1M 10M
Frequency(Hz)
I =10mA
OUT
I =200mA
OUT
100
90
80
70
60
50
40
30
20
10
0
Power-SupplyRejectionRatio(dB)
10 100
1k 10k 100k 1M 10M
Frequency(Hz)
I =10mA
OUT
I =200mA
OUT
80
70
60
50
40
30
20
10
0
Power-SupplyRejectionRatio(dB)
2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8
V (V)
IN
10kHz
1kHz
100kHz
10.00
1.00
0.10
0.01
0
NoiseSpectralDensity( V/ )m Hz
Ö
10 100
1k 10k 100k 1M 10M
Frequency(Hz)
I =10mA
C =C =1 Fm
OUT
IN OUT
50mV/div
100mA/div
200mA
0.1mA
V =2.3V
IN
t =t =1 sm
R F
100 s/divm
I
OUT
V
OUT
50mV/div
100mA/div
200mA
1mA
V =2.3V
IN
t =t =1 sm
R F
50 s/divm
I
OUT
V
OUT
TPS727xx
SBVS128C –JUNE 2009–REVISED JANUARY 2011 www.ti.com
TYPICAL CHARACTERISTICS (continued)
Over operating temperature range (T
J
= –40°C to +125°C), V
IN
= V
OUT(TYP)
+ 0.3V or 2.0V, whichever is greater; I
OUT
= 10mA,
V
EN
= V
IN
, and C
OUT
= 1.0mF, unless otherwise noted. Typical values are at T
J
= +25°C.
PSRR vs FREQUENCY PSRR vs FREQUENCY
(V
IN
– V
OUT
= 0.5V, TPS72718) (V
IN
– V
OUT
= 0.3V, TPS72718)
Figure 14. Figure 15.
OUTPUT SPECTRAL NOISE DENSITY
PSRR vs INPUT VOLTAGE vs OUTPUT VOLTAGE
(TPS72718) (TPS72718)
Figure 16. Figure 17.
LOAD TRANSIENT RESPONSE: 0.1mA TO 200mA LOAD TRANSIENT RESPONSE: 1mA TO 200mA
(TPS72718) (TPS72718)
Figure 18. Figure 19.
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