Datasheet

100
80
60
40
20
0
PSRR(dB)
10 100 1k 1M10k 100k
10M
Frequency(Hz)
I =350mA
OUT
(V V-
IN OUT
)=350mV
(V V
IN OUT
- )=300mV
(V V
IN OUT
- )=250mV
100
80
60
40
20
0
PSRR(dB)
10 100 1k 1M10k 100k
10M
Frequency(Hz)
I =1mA
OUT
I =350mA
OUT
(V V
IN OUT
- )=0.5V
(V V
BIAS OUT
- )=1.4V
500mV/div
V
OUT
I
IN
EN
50mA/div
200mV/div
20 s/divm
V =1.3V
OUT
I =110mA
IN-PEAK
10
1
0.1
0.01
OutputSpectralNoiseDensity(mV/
Ö )Hz
100 1k 10k
100k
Frequency(Hz)
1mV/div
V
OUT
V
IN
200mV/div
100 s/divm
1.6V
2.0V
500mV/div
V
OUT
I
IN
EN
200mA/div
200mV/div
20 s/divm
V =1.3V
OUT
I =400mA
IN-PEAK
TPS720xx
www.ti.com ........................................................................................................................................................ SBVS100D – JUNE 2008 – REVISED AUGUST 2009
TYPICAL CHARACTERISTICS (continued)
Over operating temperature range (T
J
= – 40 ° C to +125 ° C), V
BIAS
= (V
OUT
+ 1.4V) or 2.5V (whichever is greater);
V
IN
= V
OUT
+ 0.5V, I
OUT
= 1mA, V
EN
= 1.1V, C
OUT
= 2.2 µ F, unless otherwise noted. Typical values are at T
J
= +25 ° C.
V
IN
POWER-SUPPLY RIPPLE REJECTION V
BIAS
POWER-SUPPLY RIPPLE REJECTION
vs FREQUENCY (TPS72015YZU) vs FREQUENCY (TPS72015YZU)
Figure 19. Figure 20.
OUTPUT SPECTRAL NOISE DENSITY V
IN
INRUSH CURRENT
vs FREQUENCY (TPS72015YZU) V
IN
= 1.8V, V
OUT
= 1.3V, V
BIAS
= 2.7V, I
OUT
= 0mA
Figure 21. Figure 22.
V
IN
LINE TRANSIENT RESPONSE
V
IN
INRUSH CURRENT V
IN
= 1.6V to 2.0V, V
OUT
= 1.3V, V
BIAS
= 2.7V,
V
IN
= 1.8V, V
OUT
= 1.3V, V
BIAS
= 2.7V, I
OUT
= 350mA V
IN
SLEW RATE = 1V/ µ s, I
OUT
= 350mA
Figure 23. Figure 24.
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