Datasheet

1000
10000
_
100000
_
1000000_
FREQUENCY (Hz)
0
10
_
20
_
30
_
40
_
50
_
60
_
70
_
80
_
90
_
100
PSRR (dB)
C
OUT
= 4.7 PF Tantalum
I
LOAD
= 10 mA
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
40
120
160
200
0
0.5
1.0
1.5
LOAD CURRENT (A)
DROPUT VOLTAGE (mV)
0
80
V
BIAS
= 5V
25
o
C
-40
o
C
125
o
C
50 Ps/DIV
1
0
2
I
LOAD
(A)
I
LOAD
V
OUT
'V
OUT
(mV)
C
OUT
= 4.7 PF Tantalum
V
OUT
= 0.8V
0
-50
50
20 Ps/DIV
5
4
6
V
BIAS
(V)
V
BIAS
V
OUT
'V
OUT
(mV)
I
L
= 10 mA
V
OUT
= 1.2V
V
IN
= 1.7V
-10
0
10
50 Ps/DIV
1
0
2
I
LOAD
(A)
I
LOAD
V
OUT
'V
OUT
(mV)
V
OUT
= 0.8V
C
OUT
= 22 PF Cer
0
-50
50
LP38842-ADJ
www.ti.com SNVS304A –FEBRUARY 2005–REVISED APRIL 2013
TYPICAL PERFORMANCE CHARACTERISTICS
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
Transient Response Load Transient Response
Figure 1. Figure 2.
Load Transient Response Dropout Voltage Over Temperature
Figure 3. Figure 4.
V
BIAS
PSRR V
BIAS
PSRR
Figure 5. Figure 6.
Copyright © 2005–2013, Texas Instruments Incorporated Submit Documentation Feedback 5
Product Folder Links: LP38842-ADJ