LP2985 datasheet(26/41 Pages) TI

номер детали	LP2985

подробное описание детали	LP2985 150-mA, Low-Noise, Low-Dropout Regulator With Shutdown

PDF	41 Pages

Scroll/Zoom	100%

производитель	TI [Texas Instruments]

домашняя страница	http://www.ti.com

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26 / 41 page

3.27

3.29

3.31

3.33

3.35

3.37

3.39

3.41

2.5

3.5

4.5

5.5

VO = 3.3 V

Cbyp = 10 nF

IO = 1 mA

VIN

100 ms/div→

Figure 8-15. Line Transient Response for Legacy

Chip

s/div

100

120

140

160170

3.296

3.297

3.25

3.298

3.5

3.299

3.75

3.3

3.301

4.25

3.302

4.5

3.303

4.75

3.304

3.305

5.25

3.306

5.5

3.307

5.75

3.308

3.309

6.25

3.31

6.5

3.311

6.75

3.312

VIN

VOUT = 3.3 V, CBYP = 10 nF, ΔVIN = 1 V, IOUT = 1 mA, dV/dt =

1 V/μ

Figure 8-16. Line Transient Response for New Chip

−4

−3

−2

−1

VON/OFF

100 ms/div→

VO = 3.3 V

Cbyp = 0

IO = 150 mA

Figure 8-17. Turn-On Time for Legacy Chip

100

s/div

100

200

300

400

500

600

700

-4

-3

-2

-1

V0 = 3.3 V

Cbyp =0

ILOAD = 150 mA

VON

Figure 8-18. Turn-On Time for New Chip

−4

−3

−2

−1

VON/OFF

200 ms/div→

VO = 3.3 V

Cbyp = 100 pF

ILOAD = 150 mA

Figure 8-19. Turn-On Time for Legacy Chip

200

s/div

200

400

600

800

1000

1200

-4

-3

-2

-1

V0 = 3.3 V

Cbyp = 100 pF

ILOAD = 150 mA

V0N

Figure 8-20. Turn-On Time for New Chip

LP2985

SLVS522Q – JULY 2004 – REVISED DECEMBER 2022

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