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TPS734XX Datasheet(PDF) 6 Page - Texas Instruments

Part No. TPS734XX
Description  250mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low-Dropout Linear Regulator
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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TPS734XX Datasheet(HTML) 6 Page - Texas Instruments

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background image
400
350
300
250
200
150
100
50
0
0
50
100
150
200
250
I
(mA)
OUT
T
J =
40 C
-
°
T
J =+125 C
°
T
J =+85 C
°
T
J =0 C
°
T
J =+25 C
°
10
100
1k
10k
100k
1M
10M
Frequency(Hz)
90
80
70
60
50
40
30
20
10
0
C
=10 F
OUT
m
C
=0.01 F
NR
m
I
=250mA
OUT
I
=
100mA
OUT
I
=200mA
OUT
I
=1mA
OUT
10
100
1k
10k
100k
1M
10M
Frequency(Hz)
90
80
70
60
50
40
30
20
10
0
C
=2.2 F
OUT
m
C
=0.01 F
NR
m
I
=200mA
OUT
I
=
100mA
OUT
I
=250mA
OUT
I
=1mA
OUT
10
100
1k
10k
100k
1M
10M
Frequency(Hz)
90
80
70
60
50
40
30
20
10
0
C
=2.2 F
OUT
m
C
=0.01 F
NR
m
I
=200mA
OUT
I
=
100mA
OUT
I
=
200mA
OUT
I
=1mA
OUT
30
25
20
15
10
5
0
0
5
10
15
20
25
C
( F)
m
OUT
I
=1mA
C
=0.01 F
OUT
NR
m
140
120
100
80
60
40
20
0
0.01
0.1
1
10
C
(nF)
NR
I
=1mA
C
=2.2 F
OUT
OUT
m
TPS734xx
SBVS089F – DECEMBER 2007 – REVISED FEBRUARY 2009 ........................................................................................................................................ www.ti.com
TYPICAL CHARACTERISTICS (continued)
Over operating temperature range (TJ = –40°C to +125°C); VIN = VOUT(TYP) + 0.3V or 2.7V, whichever is greater; IOUT = 1mA,
VEN = VIN,COUT = 2.2µF, CNR = 0.01µF, unless otherwise noted. For TPS73401, VOUT = 3.0V. Typical values are at TJ =
+25°C.
TPS73401 DROPOUT VOLTAGE vs
POWER-SUPPLY RIPPLE REJECTION vs FREQUENCY
OUTPUT CURRENT
(VIN – VOUT = 1.0V)
Figure 9.
Figure 10.
POWER-SUPPLY RIPPLE REJECTION vs FREQUENCY
POWER-SUPPLY RIPPLE REJECTION vs FREQUENCY
(VIN – VOUT = 0.5V)
(VIN – VOUT = 0.3V)
Figure 11.
Figure 12.
TPS73425
TPS73425
TOTAL NOISE vs CNR
TOTAL NOISE vs COUT
Figure 13.
Figure 14.
6
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Copyright © 2007–2009, Texas Instruments Incorporated


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