Datasheet

1
100 10k 1M
FREQUENCY (MHz)
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
NOISE (PV
RMS
)
V
OUT
= 1.2V
I
L
= 1A
C
OUT
= 100 PF Tant.
1000 10000 100000 1000000
FREQUENCY (Hz)
0
10
20
30
40
50
60
70
80
90
100
PSRR (dB)
100
C
BIAS
= 1 PF Tantalum
I
L
= 0
V
OUT
= 1.2V
1000
10000 100000 1000000
FREQUENCY (Hz)
0
10
20
30
40
50
60
70
80
PSRR (dB)
C
OUT
= 4.7 PF Tantalum
C
BIAS
= 1 PF Tantalum
I
L
= 10 mA
LP38842
SNVS291C –DECEMBER 2004–REVISED APRIL 2013 www.ti.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Unless otherwise specified: T
J
= 25°C, C
IN
= 10 µF CER, C
OUT
= 22 µF CER, C
BIAS
= 1 µF CER, S/D Pin is tied to V
BIAS
, V
OUT
= 1.2V, I
L
= 10mA, V
BIAS
= 5V, V
IN
= V
OUT
+ 1V.
V
BIAS
PSRR V
IN
PSRR
Figure 9. Figure 10.
Output Noise Voltage
Figure 11.
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