5 mS/DIV

FAULT

VO

VIN

VO

VIN

5 ms/DIV

FAULT

VO

VIN

VO

VIN

10

100

1k

10k

100k

FREQUENCY (Hz)

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

2

0V

0V

500 Ps/DIV

VOUT

VSHDN

100

1k

10

k

100k

FREQUENCY (Hz)

0.01

0.1

1

10

COUT = 10PF

COUT = 2.2PF

1 ms/DIV

8

LP3982

SNVS185F – FEBRUARY 2002 – REVISED APRIL 2017

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Product Folder Links: LP3982

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Copyright © 2002–2017, Texas Instruments Incorporated

Typical Characteristics (continued)

Unless otherwise specified, VIN = VO + 0.5 V, CIN = COUT = 2.2 μF, CCC = 33 nF, TJ = 25°C, VSHDN = VIN.

Figure 7. Output Noise Spectral Density

Figure 8. Output Noise (10 Hz to 100 kHz)

Figure 9. Output Impedance vs Frequency

Figure 10. Shutdown Response

Figure 11. Power-Up Response

Figure 12. Power-Down Response