LP2987AIMX-3.3 datasheet(9/24 Pages) NSC

Part #	LP2987AIMX-3.3

Description	Micropower, 200 mA Ultra Low-Dropout Voltage Regulator with Programmable Power-On Reset Delay; Low Noise Version Available (LP2988)

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Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Storage Temperature Range

−65˚C to +150˚C

Operating Junction

Temperature Range

−40˚C to +125˚C

Lead Temperature

(Soldering, 5 seconds)

260˚C

ESD Rating (Note 2)

2 kV

Power Dissipation (Note 3)

Internally Limited

Input Supply Voltage

(Survival)

−0.3V to +16V

Input Supply Voltage

(Operating)

2.1V to +16V

Shutdown Pin

−0.3V to +16V

Sense Pin

−0.3V to +6V

Output Voltage

(Survival) (Note 4)

−0.3V to +16V

I

OUT (Survival)

Short Circuit Protected

Input-Output Voltage

(Survival) (Note 5)

−0.3V to +16V

Electrical Characteristics

Limits in standard typeface are for T

J = 25˚C, and limits in boldface type apply over the full operating temperature range. Un-

less otherwise specified: V

IN =VO(NOM) + 1V, IL = 1 mA, COUT = 4.7 µF, CIN = 2.2 µF, VS/D = 2V.

Symbol

Parameter

Conditions

Typical

LM2987/8AI-X.X

(Note 6)

LM2987/8I-X.X

(Note 6)

Units

Min

Max

Min

Max

∆V

O

Output Voltage

Tolerance

−0.5

0.5

−1.0

1.0

%V

NOM

0.1 mA < I

L < 200 mA

−0.8

0.8

−1.6

1.6

−1.8

1.8

−2.8

2.8

Output Voltage Line

Regulation

V

O(NOM) + 1V ≤ VIN ≤

16V

0.007

0.014

%/V

0.032

V

IN–VO

Dropout Voltage

(Note 7)

I

L = 100 µA

1

2.0

mV

3.5

I

L =75mA

90

120

170

I

L = 200 mA

180

230

350

I

GND

Ground Pin Current

I

L = 100 µA

100

120

µA

150

I

L =75mA

500

800

1400

I

L = 200 mA

1

2.1

mA

3.7

V

S/D < 0.3V

0.05

1.5

µA

I

O(PK)

Peak Output Current

V

OUT ≥ VO(NOM) − 5%

400

250

mA

I

O(MAX)

Short Circuit Current

R

L = 0 (Steady State)

(Note 10)

400

e

n

LP2987 Output Noise

Voltage (RMS)

BW = 300 Hz to

50 kHz, V

OUT = 3.3V

C

OUT =10µF

100

µV(RMS)

LP2988 Output Noise

Voltage (RMS)

BW = 300 Hz to 50 kHz,

V

OUT = 3.3V

C

OUT =10µF

C

BYPASS = .01 µF

20

Ripple Rejection

f = 1 kHz, C

OUT =10µF

C

BYP = 0 (LP2988)

65

dB

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