Datasheet

-40 -25 -10 1251109580655035205
T
J
( C)°
% V (V)D
OUT
3
2
1
0
-1
-2
-3
150mA
0.1mA
5mA
10 100 1k 10k 100k
Frequency(Hz)
OutputSpectralNoiseDensity( V/ )m ÖHz
100
10
1
0.1
0.01
0.001
150mA
109 Vm
RMS
50mA
109 Vm
RMS
1mA
108 Vm
RMS
Voltage(1V/div)
Time(20ms/div)
LoadCurrent
Enable
V
OUT
V
IN
V =0.0Vto
IN
5.0V
V =3.3V
OUT
I =150mA
OUT
C =10 Fm
OUT
0V
Current(50mA/div)
10 10M100 1k 10k 100k 1M
Frequency(Hz)
PSRR(dB)
80
70
60
50
40
30
20
10
0
150mA
50mA
1mA
TPS782xx
SBVS115B –AUGUST 2008–REVISED MAY 2010 www.ti.com
TYPICAL CHARACTERISTICS (continued)
Over the operating temperature range of T
J
= –40°C to +125°C, V
IN
= V
OUT(TYP)
+ 0.5V or 2.2V, whichever is
greater; I
OUT
= 100mA, V
EN
= V
IN
, C
OUT
= 1mF, and C
IN
= 1mF, unless otherwise noted.
%ΔV
OUT
vs JUNCTION TEMPERATURE OUTPUT SPECTRAL NOISE DENSITY vs FREQUENCY
V
IN
= 3.7V, V
OUT
= 2.7V (typ) C
IN
= 1mF, C
OUT
= 2.2mF, V
IN
= 3.2V
TPS78227 TPS78227
Figure 13. Figure 14.
RIPPLE REJECTION vs FREQUENCY
V
IN
= 4.2V, V
OUT
= 2.7V, C
OUT
= 2.2mF INPUT VOLTAGE RAMP vs OUTPUT VOLTAGE
TPS78227 TPS78233
Figure 15. Figure 16.
8 Submit Documentation Feedback Copyright © 2008–2010, Texas Instruments Incorporated