LP2985 datasheet(7/25 Pages) TI

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TYPICAL PERFORMANCE CHARACTERISTICS

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

−50

−25

100

125

150

VO = 3.3 V

Cbyp = 10 nF

150 mA

50 mA

10 mA

1 mA

Temperature −

°C

3.295

3.305

3.315

3.325

3.335

3.345

−50

−25

100

125

150

VI = 4.3 V

VO = 3.3 V

Ci = 1 µF

Co = 4.7 µF

IO = 1 mA

Temperature −

°C

−100

100

300

500

700

Time − ms

VI = 16 V

VO = 3.3 V

Ci = 1 µF

Cbyp = 0.01 µF

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

0.5

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

0.5

−500

500

1000

1500

2000

Time − ms

VI = 6 V

VO = 3.3 V

Ci = 1 µF

Cbyp = 0.01 µF

LP2985

150-mA LOW-NOISE LOW-DROPOUT REGULATOR

WITH SHUTDOWN

SLVS522J – JULY 2004 – REVISED AUGUST 2006

IN = 1 µF, COUT = 4.7 µF, VIN = VOUT(NOM) + 1 V, TA = 25°C, ON/OFF pin tied to VIN (unless otherwise specified)

OUTPUT VOLTAGE

DROPOUT VOLTAGE

TEMPERATURE

Figure 1.

Figure 2.

SHORT-CIRCUIT CURRENT

TIME

Figure 3.

Figure 4.

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