TPS79718 datasheet(6/11 Pages) TI

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TPS79718

TPS79730

TPS79733

SLVS332B – MARCH 2001 – REVISED JUNE 2001

www.ti.com

TYPICAL CHARACTERISTICS

3.285

3.290

3.295

3.300

3.305

3.310

3.315

246

IO – Output Current – mA

TPS79733

OUTPUT VOLTAGE

OUTPUT CURRENT

VI = 4.3 V

Co = 1 µF

TA = 25°C

Figure 1

1.785

1.790

1.795

1.800

1.805

1.810

1.815

IO – Output Current – mA

TPS79718

OUTPUT VOLTAGE

OUTPUT CURRENT

VI = 2.8 V

Co = 1 µF

TA = 25°C

Figure 2

3.25

3.26

3.27

3.28

3.29

3.30

3.31

3.32

3.33

3.34

3.35

–40

–15

TA – Free-Air Temperature – °C

TPS79733

OUTPUT VOLTAGE

FREE-AIR TEMPERATURE

IO = 1 mA

VI = 4.3 V

Co = 1 µF

IO = 10 mA

Figure 3

1.78

1.79

1.80

1.81

1.82

–40

–15

TA – Free-Air Temperature – °C

TPS79718

OUTPUT VOLTAGE

FREE-AIR TEMPERATURE

IO = 1 mA

VI = 2.8 V

Co = 1 µF

IO = 10 mA

Figure 4

0.50

0.75

1.25

1.50

1.75

–40

–15

TA – Free-Air Temperature – °C

TPS79733

GROUND CURRENT

FREE-AIR TEMPERATURE

VI = 4.3 V

VO = 3.3 V

Co = 1 µF

IO = 10 mA

Figure 5

100

1 k

10 k

100 k

IO = 10 mA

IO = 1 mA

f – Frequency – Hz

VI = 2.8 V

VO = 1.8 V

Co = 1 µF

TPS79718

OUTPUT SPECTRAL NOISE DENSITY

FREQUENCY

Figure 6

f – Frequency – Hz

VI = 4.3 V

VO = 3.3 V

Co = 1 µF

TJ = 25°C

IO = 1 mA

100

1 M

10k

100k

10 M

IO = 10 mA

OUTPUT IMPEDANCE

FREQUENCY

Figure 7

100

120

140

–40 –25

–10

203550

TA – Free-Air Temperature – °C

VI = 3.2 V

Co = 1 µF

IO = 10 mA

IO = 1 mA

TPS79733

DROPOUT VOLTAGE

FREE-AIR TEMPERATURE

Figure 8

POWER UP / POWER DOWN

VO = 3.3 V

RL = 330 Ω

t – Time – ms

030

40 50

80 90 100

Figure 9

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