Datasheet

90
80
70
60
50
40
30
20
10
0
0.0 1.0 1.50.5 2.0 2.5
V
IN
−
V
OUT
(V)
PSRR (dB)
3.0 3.5 4.0
0.1kHz
1kHz
10kHz
100kHz
1MHz
C
NR
= 0.01
µ
F
C
OUT
= 2.2
µ
F
90
80
70
60
50
40
30
20
10
0
0.0 1.0 1.50.5 2.0 2.5
V
IN
−
V
OUT
(V)
PSRR (dB)
3.0 3.5 4.0
0.1kHz
100kHz
1kHz
10kHz
1MHz
C
NR
= 0.01
µ
F
C
OUT
= 2.2
µ
F
200
180
160
140
120
100
80
60
40
20
0
0.01 0.1 1
C
NR
(nF)
10
I
OUT
= 1mA
C
OUT
= 2.2
µ
F
Total Noise (
µ
Vrms)
35
30
25
20
15
10
5
0
0 5 10 15 20
C
OUT
(
µ
F)
Total Noise (
µ
Vrms)
25
I
OUT
= 1mA
C
NR
= 0.01
µ
F
20
µ
s/div
20mV/div
20mV/div
1V/div
V
OUT
V
OUT
V
IN
I
OUT
= 150mA
dV
IN
dt
= 1V/
µ
s
C
OUT
= 10
µ
F
C
OUT
= 2.2
µ
F
3.15V
4.15V
20 s/divm
100mV/div
100mV/div
100mA/div
V
OUT
V
OUT
I
OUT
C =2.2 F
OUT
m
C =10 F
OUT
m
V =3.35V
IN
150mA
1mA
TPS799xx
SBVS056J –JANUARY 2005–REVISED AUGUST 2010 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
= 2.2mF, C
NR
= 0.01mF, unless otherwise noted. For TPS79901, V
OUT
= 3.0V.
Typical values are at T
J
= +25°C.
POWER-SUPPLY RIPPLE REJECTION vs POWER-SUPPLY RIPPLE REJECTION vs
V
IN
– V
OUT
, I
OUT
= 100mA V
IN
– V
OUT
, I
OUT
= 200mA
Figure 19. Figure 20.
TPS799285 TPS799285
TOTAL NOISE vs C
NR
TOTAL NOISE vs C
OUT
Figure 21. Figure 22.
TPS799285 TPS799285
LINE TRANSIENT RESPONSE LOAD TRANSIENT RESPONSE
Figure 23. Figure 24.
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