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LP38843 Datasheet(PDF) 5 Page - Texas Instruments

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Part # LP38843
Description  3A Ultra Low Dropout Linear Regulators Stable with Ceramic Output Capacitors
PDF  17 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LP38843 Datasheet(HTML) 5 Page - Texas Instruments

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1000
10000
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100000
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1000000
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FREQUENCY (Hz)
0
10
_
20
_
30
_
40
_
50
_
60
_
70
_
80
_
90
_
100
COUT = 4.7 PF Tantalum
ILOAD = 10 mA
1.45
1.46
1.47
1.48
1.49
1.50
1.51
1.52
1.53
1.54
1.55
TEMPERATURE (
oC)
-40
0
40
120
80
-20
20
60
140
100
50 Ps/DIV
1
0
2
ILOAD
VOUT
COUT = 4.7 PF Tantalum
VOUT = 0.8V
0
-50
50
20 Ps/DIV
5
4
6
VBIAS
VOUT
IL = 10 mA
VOUT = 1.2V
VIN = 1.7V
-10
0
10
50 Ps/DIV
1
0
2
ILOAD
VOUT
VOUT = 0.8V
COUT = 22 PF Cer
0
-50
50
LP38843
www.ti.com
SNVS290C – DECEMBER 2004 – REVISED APRIL 2013
TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise specified: TJ = 25°C, CIN = 10 µF CER, COUT = 22 µF CER, CBIAS = 1 µF CER, S/D Pin is tied to VBIAS, VOUT
= 1.2V, IL = 10mA, VBIAS = 5V, VIN = VOUT + 1V.
VBIAS Transient Response
Load Transient Response
Figure 3.
Figure 4.
Load Transient Response
Dropout Voltage Over Temperature
Figure 5.
Figure 6.
VOUT
vs
Temperature
VBIAS PSRR
Figure 7.
Figure 8.
Copyright © 2004–2013, Texas Instruments Incorporated
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