Datasheet

DV (%)
OUT(NOM)
3
2
1
0
1
2
3
-
-
-
-40 -25 -10
5
20 35 50 65 80 95 110 125
T ( )
J
C
°
150mA
100 Am
10 Am
5mA
100
10
1
0.1
0.01
0.001
OutputSpectralNoiseDensity( V/ )m Hz
Ö
10 100
1k 10k 100k
Frequency(Hz)
150mA
1mA=130
50mA=134
150mA=138.0mV
mV
mV
RMS
RMS
RMS
50mA
1mA
Voltage(1V/div)
Time(20ms/div)
LoadCurrent
Enable
V
OUT
V
IN
V =0.0Vto
IN
5.0V
V =3.0V
OUT
I =150mA
OUT
C =10 Fm
OUT
0V
Current(50mA/div)
80
70
60
50
40
30
20
10
0
Power-SupplyRejectionRatio(dB)
10 100
1k 10k 100k 1M
Frequency(Hz)
150mA
50mA
1mA
Voltage(1V/div)
Time(20ms/div)
V =5.5V
IN
V =3.0V
OUT
I =150mA
OUT
C =10 Fm
OUT
V
IN
V
OUT
LoadCurrent
Enable
0V
Current(50mA/div)
Time(500 s/div)m
Voltage(1V/div)
V
OUT
V
IN
V
ENABLE
V
V
IN
OUT
=5.5V
=3.0V
I =150mA
C =10mF
OUT
OUT
TPS783xx
www.ti.com SBVS133 –FEBRUARY 2010
TYPICAL CHARACTERISTICS (continued)
Over the operating temperature range of T
J
= –40°C to +105°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.
TPS78330
TPS78330 OUTPUT SPECTRAL NOISE DENSITY %ΔV
OUT
vs JUNCTION TEMPERATURE
C
IN
= 1mF, C
OUT
= 2.2mF, V
IN
= 3.5V, V
OUT(NOM)
= 3.0V V
IN
= 3.5V, V
OUT(NOM)
= 3.0V
Figure 11. Figure 12.
TPS78330 RIPPLE REJECTION vs FREQUENCY TPS78330 INPUT VOLTAGE RAMP vs
V
IN
= 3.5V, V
OUT(NOM
= 3.0V, C
OUT
= 2.2mF OUTPUT VOLTAGE
Figure 13. Figure 14.
TPS78330 OUTPUT VOLTAGE vs TPS78330 INPUT VOLTAGE vs
ENABLE (SLOW RAMP) DELAY TO OUTPUT
Figure 15. Figure 16.
Copyright © 2010, Texas Instruments Incorporated 7