5

LP3982

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SNVS185F – FEBRUARY 2002 – REVISED APRIL 2017

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Copyright © 2002–2017, Texas Instruments Incorporated

(1)

Condition does not apply to input voltages below 2.5 V because this is the minimum input operating voltage.

(2)

All limits are verified by testing or statistical analysis.

(3)

Typical values represent the most likely parametric norm.

(4)

Dropout voltage is measured by reducing VIN until VOUT drops 100 mV from its nominal value at VIN – VOUT = 0.5 V. Dropout voltage

does not apply to the 1.8-V version.

(5)

The SET pin is not externally connected for the fixed versions.

6.5 Electrical Characteristics

Unless otherwise specified, all limits are specified for VIN = VOUT + 0.5 V

(1), V

SHDN = VIN, CIN = COUT = 2.2 μF, CCC = 33 nF, TJ

= 25°C.

PARAMETER

TEST CONDITIONS

MIN(2)

TYP(3)

MAX(2)

UNIT

VIN

Input voltage

For operating temperature extremes:

−40°C to 85°C

2.5

6

V

ΔVOUT

Output voltage tolerance

100 μA ≤ IOUT ≤ 300 mA

VIN = VOUT + 0.5 V

(1)

SET = OUT for the ADJ Versions

−2

2

% of VOUT

(NOM)

For operating temperature extremes:

−40°C to 85°C

−3

3

VOUT

Output adjust range

ADJ version only;

for operating temperature extremes:

−40°C to 85°C

1.25

6

V

IOUT

Maximum output current

Average DC current rating;

For operating temperature extremes:

−40°C and 85°C

300

mA

ILIMIT

Output current limit

770

mA

For operating temperature extremes:

−40°C to 85°C

330

IQ

Supply current

IOUT = 0 mA

90

μA

IOUT = 0 mA;

for operating temperature extremes:

−40°C to 85°C

270

IOUT = 300 mA

225

Shutdown supply current

VO = 0 V, SHDN = GND

0.001

1

μA

VDO

Dropout voltage(1)(4)

IOUT = 1 mA

0.4

mV

IOUT = 200 mA

80

IOUT = 200 mA;

for operating temperature extremes:

−40°C to 85°C

220

IOUT = 300 mA

120

ΔVOUT

Line regulation

IOUT = 1 mA,

(VOUT + 0.5 V) ≤ VI ≤ 6 V

(1)

0.01

%/V

IOUT = 1 mA, (VOUT + 0.5 V) ≤ VI ≤ 6

V(1);

for operating temperature extremes:

−40°C to 85°C

−0.1

0.1

Load regulation

100 μA ≤ IOUT ≤ 300 mA

0.002

%/mA

en

Output voltage noise

IOUT = 10 mA, 10 Hz ≤ f ≤ 100 kHz

37

μVRMS

Output voltage noise density

10 Hz

≤ f ≤ 100 kHz, COUT = 10 μF

190

nV/

√Hz

VSHDN

SHDN input threshold

VIH, (VOUT + 0.5 V) ≤ VIN ≤ 6 V

(1);

for operating temperature extremes:

−40°C to 85°C

2

V

VIL, (VOUT + 0.5 V) ≤ VIN ≤ 6 V

(1);

for operating temperature

extremes:

−40°C to 85°C

0.4

ISHDN

SHDN input bias current

SHDN = GND or IN

0.1

100

nA

ISET

SET input leakage

SET = 1.3 V, ADJ version only(5)

0.1

2.5

nA