Datasheet

400
350
300
250
200
150
100
50
0
V (mV)
DO
0 50 100 150 200 250
I (mA)
OUT
T
J
= 40 C- °
T
J
=+125 C°
T
J
=+85 C°
T
J
=0 C°
T
J
=+25 C°
10 100
1k
10k 100k
1M
10M
Frequency(Hz)
90
80
70
60
50
40
30
20
10
0
PSRR(dB)
C =10 F
OUT
m
C =0.01 F
NR
m
I =250mA
OUT
I =
100mA
OUT
I =200mA
OUT
I =1mA
OUT
10 100
1k
10k 100k
1M
10M
Frequency(Hz)
90
80
70
60
50
40
30
20
10
0
PSRR(dB)
C =2.2 F
OUT
m
C =0.01 F
NR
m
I =200mA
OUT
I =
100mA
OUT
I =250mA
OUT
I =1mA
OUT
10 100
1k
10k 100k
1M
10M
Frequency(Hz)
90
80
70
60
50
40
30
20
10
0
PSRR(dB)
C =2.2 F
OUT
m
C =0.01 F
NR
m
I =200mA
OUT
I =
100mA
OUT
I =
200mA
OUT
I =1mA
OUT
30
25
20
15
10
5
0
TotalNoise( V )
m
RMS
0
5
10 15 20 25
C ( F)m
OUT
I =1mA
C =0.01 F
OUT
NR
m
140
120
100
80
60
40
20
0
TotalNoise( V )
m
RMS
0.01 0.1
1
10
C (nF)
NR
I =1mA
C =2.2 F
OUT
OUT
m
TPS734xx
SBVS089F – DECEMBER 2007 – REVISED FEBRUARY 2009 ........................................................................................................................................ 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 2.7V, whichever is greater; I
OUT
= 1mA,
V
EN
= V
IN
,C
OUT
= 2.2 µ F, C
NR
= 0.01 µ F, unless otherwise noted. For TPS73401, V
OUT
= 3.0V. Typical values are at T
J
=
+25 ° C.
TPS73401 DROPOUT VOLTAGE vs POWER-SUPPLY RIPPLE REJECTION vs FREQUENCY
OUTPUT CURRENT (V
IN
– V
OUT
= 1.0V)
Figure 9. Figure 10.
POWER-SUPPLY RIPPLE REJECTION vs FREQUENCY POWER-SUPPLY RIPPLE REJECTION vs FREQUENCY
(V
IN
– V
OUT
= 0.5V) (V
IN
– V
OUT
= 0.3V)
Figure 11. Figure 12.
TPS73425 TPS73425
TOTAL NOISE vs C
NR
TOTAL NOISE vs C
OUT
Figure 13. Figure 14.
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