LP3982ILD-2.82 datasheet(2/12 Pages) NSC

Part #	LP3982ILD-2.82

Description	Micropower, Ultra Low-Dropout, Low-Noise, 300mA CMOS Regulator

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Manufacturer	NSC [National Semiconductor (TI)]

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Absolute Maximum Ratings (Notes 1,

2)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

V

IN,VOUT,VSHDN,VSET,VCC,

V

FAULT

−0.3V to 6.5V

Fault Sink Current

20mA

Power Dissipation

(Note 3)

Storage Temperature Range

−65˚C to 160˚C

Junction Temperature (T

J)

150˚C

Lead Temperature (10 sec.)

260˚C

ESD Rating

Human Body Model (Note 6)

2kV

Machine Model

200V

Thermal Resistance (

θ

JA)

8-Pin MSOP

223˚C/W

8-Pin LLP

(Note 3)

Operating Ratings(Note 1), (Note 2)

Temperature Range

−40˚C to 85˚C

Supply Voltage

2.5V to 6.0V

Electrical Characteristics

Unless otherwise specified, all limits guaranteed for V

IN =VO +0.5V (Note 7), VSHDN =VIN,CIN =COUT = 2.2µF, CCC = 33nF,

T

J = 25˚C. Boldface limits apply for the operating temperature extremes: −40˚C and 85˚C.

Symbol

Parameter

Conditions

Min

(Note 5)

Typ

(Note 4)

Max

(Note 5)

Units

V

IN

Input Voltage

2.5

6.0

V

∆V

O

Output Voltage Tolerance

100µA

≤ I

OUT

≤ 300mA

V

IN =VO +0.5V, (Note 7)

SET = OUT for the Adjust

Versions

−2

+2

%of

V

OUT (NOM)

−3

+3

V

O

Output Adjust Range

Adjust Version Only

1.25

6

V

I

O

Maximum Output Current

Average DC Current Rating

300

mA

I

LIMIT

Output Current Limit

330

770

mA

I

Q

Supply Current

I

OUT = 0mA

90

270

µA

I

OUT = 300mA

225

Shutdown Supply Current

V

O = 0V, SHDN = GND

0.001

1

µA

V

DO

Dropout Voltage

(Note 7), (Note 8)

I

OUT = 1mA

0.4

mV

I

OUT = 200mA

80

220

I

OUT = 300mA

120

∆V

O

Line Regulation

I

OUT = 1mA, (VO + 0.5V)

≤ V

I

≤ 6V

(Note 7)

−0.1

0.01

0.1

%/V

Load Regulation

100µA

≤ I

OUT

≤ 300mA

0.002

%/mA

e

n

Output Voltage Noise

I

OUT = 10mA, 10Hz

≤ f ≤ 100kHz

37

µV

RMS

Output Voltage Noise Density

10Hz

≤ f ≤ 100kHz, C

OUT = 10µF

190

nV/

V

SHDN

SHDN Input Threshold

V

IH,(VO + 0.5V)

≤ V

I

≤ 6V

(Note 7)

2

V

IL,(VO + 0.5V)

≤ V

I

≤ 6V

(Note 7)

0.4

I

SHDN

SHDN Input Bias Current

SHDN = GND or IN

0.1

100

nA

I

SET

SET Input Leakage

SET = 1.3V, Adjust Version Only

(Note 9)

0.1

2.5

nA

V

FAULT

FAULTDetection Voltage

V

O

≥ 2.5V, I

OUT = 200mA

(Note 10)

120

280

mV

FAULT Output Low Voltage

I

SINK = 2mA

0.115

0.25

V

I

FAULT

FAULT Off-Leakage Current

FAULT = 3.6V, SHDN = 0V

0.1

100

nA

T

SD

Thermal Shutdown

Temperature

160

˚C

Thermal Shutdown Hysteresis

10

T

ON

Start-Up Time

C

OUT = 10µF, VO at 90% of Final

Value

120

µs

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