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TPS70458 Fiches technique(PDF) 11 Page - Texas Instruments

No de pièce TPS70458
Description  DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS70458 Fiches technique(HTML) 11 Page - Texas Instruments

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TPS70445, TPS70448, TPS70451, TPS70458, TPS70402
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
SLVS307B – SEPTEMBER 2000 – REVISED APRIL 2003
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
VO
Output voltage
vs Output current
1, 2
VO
Output voltage
vs Junction temperature
3, 4
Ground current
vs Junction temperature
5
PSRR
Power supply rejection ratio
vs Frequency
6 – 9
Output spectral noise density
vs Frequency
10 – 13
zo
Output impedance
vs Frequency
14 – 17
Dropout voltage
vs Temperature
18, 19
Dropout voltage
vs Input voltage
20, 21
Load transient response
22, 23
Line transient response
24, 25
VO
Output voltage
vs Time (start-up)
26, 27
Equivalent series resistance (ESR)
vs Output current
29 – 32
Figure 1
3.27
3.28
3.29
3.30
3.31
0
200
400
600
800
1000
IO – Output Current – mA
TPS70451
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
VIN1 = 4.3 V
TJ = 25°C
VOUT1
3.32
3.33
Figure 2
1.785
1.79
1.795
1.8
1.805
0
500
1000
1500
2000
IO – Output Current – mA
TPS70451
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
VIN2 = 2.8V
TJ = 25°C
VOUT2
1.81
1.815


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