Datasheet

100 mA/DIV
20 mV/DIV
V
OUT
I
OUT
I
L
=
300mA
500Ps/DIV
0V
0V
1 V/DIV
500 Ps/DIV
2 V/DIV
V
OUT
V
SHDN
10
100
1k
10k
100k
FREQUENCY (Hz)
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
OUTPUT IMPEDANCE (:)
3.3V
4.3V
V
O
(10 mV/DIV)
V
IN
(V)
I
L
=
300mA
500 Ps/DIV
100
1k
10
k
100k
FREQUENCY (Hz)
0.01
0.1
1
10
NOISE (PV/
Hz)
C
OUT
= 10PF
C
OUT
= 2.2PF
100 PV/DIV
1 ms/DIV
LP3982
www.ti.com SNVS185D –FEBRUARY 2002–REVISED APRIL 2013
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Unless otherwise specified, V
IN
= V
O
+ 0.5V, C
IN
= C
OUT
= 2.2 μF, C
CC
= 33 nF, T
J
= 25°C, V
SHDN
= V
IN
.
Output Noise Spectral Density Output Noise (10Hz to 100kHz)
Figure 8. Figure 9.
Output Impedance vs. Frequency Line Transient Response
Figure 10. Figure 11.
Load Transient Shutdown Response
Figure 12. Figure 13.
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