Datasheet

0
10
20
30
40
50
60
70
80
Frequency (Hz)
1 10k 10M1k
Ripple Rejection − dB
I
OUT
= 1 mA
I
OUT
= 1 A
V
IN
= 4 V
C
OUT
= 10 µF
C
NR
= 0.01 µF
10 100 100k 1M
0
10
20
30
40
50
60
RMS − Root Mean Squared Output Noise − µV
RMS
C
NR
(µF)
I
OUT
= 250 mA
C
OUT
= 10 µF
0.001 µF 0.01 µF 0.1 µF0.0047 µF
BW = 100 Hz to 100 kHz
0
50
100
150
200
250
300
350
−40−25−10 5 20 35 50 65 80 95 110 125
V
DO
(mV)
T
J
(
_
C)
V
IN
= 2.7 V
C
OUT
= 10
µ
F
I
OUT
= 1 A
I
OUT
= 250 mA
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Frequency (Hz)
100 10k 100k1k
I
OUT
= 1 mA
I
OUT
= 1.5 A
V
IN
= 5.5 V
C
OUT
= 2.2 µF
C
NR
= 0.1 µF
Output Spectral Noise Density − µV//Hz
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Frequency (Hz)
100 10k 100k1k
Output Spectral Noise Density − µV//Hz
I
OUT
= 1 mA
I
OUT
= 1 A
V
IN
= 5.5 V
C
OUT
= 10 µF
C
NR
= 0.1 µF
0.0
0.5
1.0
1.5
2.0
2.5
Frequency (Hz)
100 10k 100k1k
V
IN
= 5.5 V
C
OUT
= 10 µF
I
OUT
= 1 A
C
NR
= 0.1 µF
C
NR
= 0.01 µF
C
NR
= 0.0047 µF
C
NR
= 0.001 µF
Output Spectral Noise Density − µV//Hz
2.95
2.96
2.97
2.98
2.99
3.00
3.01
3.02
3.03
3.04
3.05
0.0 0.2 0.4 0.6 0.8 1.0
V
OUT
(V)
I
OUT
(A)
V
IN
= 4 V
C
OUT
= 10 µF
T
J
= 25°C
0
1
2
3
4
−40−25−10 5 20 35 50 65 80 95 110 125
V
OUT
(V)
T
J
(°C)
I
OUT
= 1 mA
2.795
2.790
2.785
2.780
2.775
I
OUT
= 1 A
V
IN
= 3.8 V
C
OUT
= 10 µF
290
300
310
320
330
340
350
−40−25−10 5 20 35 50 65 80 95 110 125
I
GND
(µA)
T
J
(°C)
V
IN
= 3.8 V
C
OUT
= 10 µF
I
OUT
= 1 mA
I
OUT
= 1 A
TPS796
SLVS351O –SEPTEMBER 2002–REVISED NOVEMBER 2013 www.ti.com
TYPICAL CHARACTERISTICS
TPS79630 TPS79628 TPS79628
OUTPUT VOLTAGE OUTPUT VOLTAGE GROUND CURRENT
vs vs vs
OUTPUT CURRENT JUNCTION TEMPERATURE JUNCTION TEMPERATURE
Figure 1. Figure 2. Figure 3.
TPS79630 TPS79630 TPS79630
OUTPUT SPECTRAL NOISE DENSITY OUTPUT SPECTRAL NOISE DENSITY OUTPUT SPECTRAL NOISE DENSITY
vs vs vs
FREQUENCY FREQUENCY FREQUENCY
Figure 4. Figure 5. Figure 6.
TPS79630
TPS79628 TPS79630
ROOT MEAN SQUARED OUTPUT
NOISE DROPOUT VOLTAGE RIPPLE REJECTION
vs vs vs
BYPASS CAPACITANCE JUNCTION TEMPERATURE FREQUENCY
Figure 7. Figure 8. Figure 9.
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