LR3865L-AD-SH2-R datasheet(5/6 Pages) UTC

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UNISONICTECHNOLOGIESCO.,LTD

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QW-R102-099.c



ABSOLUTE MAXIMUM RATING (TA=25°С, unless otherwise specified)

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage

VIN

6.5

Power Dissipation

606

Junction Temperature

+125

°С

Operating Temperature

TOPR

-40 ~ +85

°С

Storage Temperature

TSTG

-65 ~ +150

°С

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.



THERMAL RESISTANCES CHARACTERISTICS

PARAMETER

SYMBOL

RATINGS

UNIT

Junction to Ambient

θJA

165

C/W



ELECTRICAL CHARACTERISTICS

(TA= 25°C, VIN = OUT + 1V or VIN =2.5V whichever is greater, CIN = 10µF+0.1µF, COUT = 10uF + (0.1uF + 0.1uF),

unless otherwise specified)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input Voltage

VIN

Note1

Output Voltage Accuracy

(Preset Mode)

OUT

TA＝25°С , IOUT= 1mA ~2A

-2

Maximum Output Current

IOUT

3.8

Short-Circuit Current Limit

ILIMIT

OUT=0V

3.8

IOUT=1mA

200

Ground Pin Current

IOFF

EN=GND

0.5

µA

Dropout Voltage (Note 2)

IOUT=2.0A

650

Line Regulation (Note 3)

OUT

∆V

VIN=OUT+1V~6V

0.08

0.55

%/V

Load Regulation (Note 3, 4)

∆OUT

VIN=OUT+1V, OUT=2.5V,

IOUT=10mA~2.0A

0.3

1.0

Power Supply Rejection Ratio

PSRR

F=1Khz

VIH

1.8

Shutdown Threshold

VIL

0.5

Thermal Shutdown Temperature

TSHDN

165

°С

Thermal Shutdown Hysteresis

DTSHDN

°С

ADJ Voltage

VADJ

Measured on SET/ADJ,

IOUT =10mA

0.588

0.6

0.612

ADJ Mode Threshold

100

Adjustable Output Voltage

0.8

4.5

SoftStart Current

ISS

VSS=0

1.2

Power-OK Threshold

Vpokth

Referred to OUT (nominal)

93.75

Power-OK Hysteresis

Vpokhys

6.25

Power-OK output Low Voltage

VpokL

Sinking 1mA

0.4

Notes: 1. The minimum operating value for VIN is equal to either [OUT(NOM)+VD] or 2.5V, whichever is greater.

2. Dropout voltage is defined as the voltage from the input to output when output is 2% below the nominal

value. Dropout voltage specification applies only to output voltage of 2.5V and above .

3. Output voltage line regulation is defined as the change in output voltage from the nominal value resulting

from a change in the input line voltage. Output voltage load regulation is defined as the change in output

voltage from the nominal value as the load current increases from no load to full load.

4. Regulation is measured at constant junction temperature by using a 10ms current pulse.

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