100

1k

10k

100k

1M

FREQUENCY (Hz)

-80

-60

-40

-20

0

10

LP5951-3.3

VIN = 5.5V,

IL = 1 mA

VIN = 3.8V,

IL = 1 mA

VIN = 5.5V,

IL = 0 mA

VIN = 3.8V,

IL = 0 mA

18.0

20.0

22.0

24.0

26.0

34.0

36.0

38.0

40.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

VIN (V)

32.0

30.0

28.0

LP5951-1.3

IL = 1 mA

TA = -40

oC

TA = 25

oC

TA = 125

oC

-40

120

TEMPERATURE (

oC)

-0.4

-0.2

0.0

0.2

0.4

0.6

0.8

1.0

100

80

60

40

20

-20

0

LP5951-1.3

IL = 1 mA

LP5951-1.3

TIME (10 µs/DIV)

IL = 150 mA

LP5951-3.3

TIME (10 µs/DIV)

IL = 150 mA

LP5951

www.ti.com

SNVS345G – JUNE 2006 – REVISED DECEMBER 2014

Typical Characteristics (continued)

Unless otherwise specified, CIN = 1 µF ceramic, COUT = 1 µF ceramic, VIN = VOUT(NOM) + 1 V, TA = 25°C; EN pin is tied to VIN.

Figure 5. Enable Start-Up Time

Figure 6. Enable Start-Up Time

Figure 7. Output Voltage Change vs Temperature

Figure 8. Ground Current vs VIN

Figure 9. Power Supply Rejection Ratio

Copyright © 2006–2014, Texas Instruments Incorporated

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