Datasheet

10 10M100 1k 10k 100k 1M
Frequency(Hz)
PSRR(dB)
80
70
60
50
40
30
20
10
0
150mA
50mA
1mA
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)
-40 -25 -10 1251109580655035205
Temperature( 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
TI Information — Selective Disclosure
TPS780 Series
SBVS083D –JANUARY 2007–REVISED SEPTEMBER 2012 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
= 100μA, V
EN
= V
VSET
= V
IN
, C
OUT
= 1μF, and C
IN
= 1μF, unless otherwise noted.
%ΔV
OUT
OUTPUT SPECTRAL NOISE DENSITY
vs vs
TEMPERATURE FREQUENCY
V
VSET
= 0.4V, V
IN
= 3.8V, V
OUT
= 3.3V (typ) C
IN
= 1μF, C
OUT
= 2.2μF, V
VSET
= 1.2V, V
IN
= 2.7V
TPS780330220 TPS780330220
Figure 39. Figure 40.
RIPPLE REJECTION
vs
INPUT VOLTAGE RAMP
FREQUENCY
vs
V
IN
= 2.7V, V
OUT
= 1.2V, C
OUT
= 2.2μF OUTPUT VOLTAGE
TPS78001 TPS780330220
Figure 41. Figure 42.
14 Submit Documentation Feedback Copyright © 2007–2012, Texas Instruments Incorporated