TPS70158PWP datasheet(11/34 Pages) TI1

Part #	TPS70158PWP

Description	Dual-Output Low-Dropout Voltage Regulators with Power-Up Sequencing for Split-Voltage DSP Systems

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Manufacturer	TI1 [Texas Instruments]

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TYPICAL CHARACTERISTICS

IO − Output Current − A

3.296

3.295

3.293

3.292

0

0.1

0.2

0.3

3.298

3.299

3.300

0.4

0.5

0.6

3.297

3.294

VIN1 = 4.3 V

TA = 25°C

VOUT1

1.799

1.797

1.796

1.795

0

0.05

0.1

0.15

1.800

1.801

1.802

0.2

0.25

0.3

1.798

IO − Output Current − A

VIN2 = 2.8V

TA = 25°C

VOUT2

TPS70145, TPS70148

TPS70151, TPS70158

TPS70102

SLVS222D – DECEMBER 1999 – REVISED NOVEMBER 2004

Table 2. Table of Graphs

FIGURE

vs Output current

1 - 3

VO

Output voltage

vs Temperature

4 - 7

Ground current

vs Junction temperature

8

PSRR

Power-supply rejection ratio

vs Frequency

9 - 12

Output spectral noise density

vs Frequency

13 - 16

ZO

Output impedance

vs Frequency

17 - 20

vs Temperature

21, 22

Dropout voltage

vs Input voltage

23, 24

Load transient response

25, 26

Line transient response

27, 28

VO

Output voltage and enable voltage

vs Time (start-up)

29, 30

Equivalent series resistance

vs Output current

31 - 38

Test circuit for typical regions of stability (equivalent series resistance) performance

39

TPS70151

OUTPUT VOLTAGE

vs

OUTPUT CURRENT

Figure 1.

Figure 2.

11

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