LT8613_15 datasheet(2/24 Pages) LINER

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LT8613

8613f

pin conFiguraTion

absoluTe MaxiMuM raTings

VIN, EN/UV, PG, ISP, ISN...........................................42V

BIAS..........................................................................25V

BST Pin Above SW Pin................................................4V

FB, TR/SS, RT, INTVCC, IMON, ICTRL.........................4V

SYNC Voltage .............................................................6V

Operating Junction Temperature Range (Note 2)

LT8613E................................................. –40 to 125°C

LT8613I.................................................. –40 to 125°C

Storage Temperature Range ......................–65 to 150°C

(Note 1)

TOP VIEW

GND

UDE PACKAGE

28-LEAD (3mm

× 6mm) PLASTIC QFN

12 13 14

28 27 26 25

SYNC

TR/SS

EN/UV

VIN

PGND

BIAS

INTVCC

BST

θJA = 40°C/W, θJC(PAD) = 5°C/W

EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB

elecTrical characTerisTics The

denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C.

orDer inForMaTion

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT8613EUDE#PBF

LT8613EUDE#TRPBF

LGHX

28-Lead (3mm

× 6mm) Plastic QFN

–40°C to 125°C

LT8613IUDE#PBF

LT8613IUDE#TRPBF

LGHX

28-Lead (3mm

× 6mm) Plastic QFN

–40°C to 125°C

Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.

Consult LTC Marketing for information on non-standard lead based finish parts.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Input Voltage

2.9

3.4

VIN Quiescent Current

VEN/UV = 0V, VSYNC = 0V

1.0

µA

VEN/UV = 2V, Not Switching, VSYNC = 0V

1.7

µA

VEN/UV = 2V, Not Switching, VSYNC = 2V

0.3

0.6

VIN Current in Regulation

VOUT = 0.97V, VIN = 6V, Output Load = 100µA

VOUT = 0.97V, VIN = 6V, Output Load = 1mA

230

370

µA

Feedback Reference Voltage

VIN = 12V, ILOAD = 500mA

0.964

0.958

0.970

0.976

0.982

Feedback Voltage Line Regulation

VIN = 4.0V to 25V, ILOAD = 0.5A

0.004

0.025

%/V

Feedback Pin Input Current

VFB = 1V

–20

0.5

BIAS Pin Current Consumption

VBIAS = 3.3V, ILOAD = 2A, 2MHz

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