TPS72301DBVRG4 datasheet(9/25 Pages) TI1

Part #	TPS72301DBVRG4

Description	200mA Low-Noise, High-PSRR Negative Output Low-Dropout Linear Regulators

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Manufacturer	TI1 [Texas Instruments]

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10m

1m

100n

10n

Frequency(Hz)

100

1k

10k

100k

C

=0.01 F

IN

m

C

=2.2 F

OUT

m

C

=0.01 F

NR

m

I

=100mA

OUT

I

=25 A

OUT

m

10m

1m

100n

10n

Frequency(Hz)

100

1k

10k

100k

C

=0 F

IN

m

C

=2.2 F

OUT

m

C

=0.01 F

NR

m

I

=100mA

OUT

I

=25 A

OUT

m

250

200

150

100

50

0

C

(pF)

NR

1

10

100

1k

10k

100k

C

=2.2

OUT

mF,I

=100mA

C

=10

OUT

mF,I

=100mA

C

=2.2 F,I

m

OUT

OUT =25mA

C

=10 F,I

m

OUT

OUT =25mA

C

=2.2m

IN

F

Time(1ms/div)

C

2.2m

IN = -

F,C

m

OUT =2.2 F

I

=0.01m

OUT =100mA,CNR

F

Time(ms)

0

1

2

3

4

5

6

7

8

9

10

C

IN =2.2mF

C

OUT =2.2mF

I

=50mA

OUT

C

NR =0mF

0

0.5

-

0.5

-

1.0

-

1.5

-

2.0

-

2.5

-

3.0

-

3.5

V

OUT

V

IN

Time(ms)

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

C

IN =2.2mF

C

OUT =2.2mF

I

=50mA

OUT

C

NR =0.01mF

0

1

2

0

1

2

3

TPS72301, TPS72325

www.ti.com

SLVS346C – SEPTEMBER 2003 – REVISED SEPTEMBER 2014

Typical Characteristics (continued)

TPS72325 at VI = VO(NOM) – 0.5 V, IO = 1 mA, VEN = 1.5 V, CO = 2.2 μF, and CNR = 0.01 μF, unless otherwise noted.

Figure 19. TPS72325 Start-Up Response

Figure 20. TPS72325 Power-Up/Power-Down

Figure 22. TPS72325 Output Noise vs Time

Figure 21. TPS72325 Total Noise vs CNR (10 Hz to 100 kHz)

Figure 23. TPS72325 Noise Spectral Density vs Frequency

Figure 24. TPS72325 Noise Spectral Density vs Frequency

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