LT3741_15 datasheet(2/24 Pages) LINER

2 / 24 page

LT3741/LT3741-1

37411fe

For more information www.linear.com/LT3741

VIN Voltage................................................................40V

EN/UVLO Voltage ........................................................6V

VREF Voltage................................................................3V

CTRL1 and CTRL2 Voltage..........................................3V

SENSE+ Voltage ........................................................40V

SENSE– Voltage ........................................................40V

VC Voltage ..................................................................3V

SW Voltage ...............................................................40V

CBOOT ......................................................................46V

(Note 1)

orDer inFormaTion

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT3741EUF#PBF

LT3741EUF#TRPBF

3741

20-Lead (4mm

× 4mm) Plastic QFN

–40°C to 125°C

LT3741IUF#PBF

LT3741IUF#TRPBF

3741

20-Lead (4mm

× 4mm) Plastic QFN

–40°C to 125°C

LT3741EFE#PBF

LT3741EFE#TRPBF

LT3741FE

20-Lead Plastic TSSOP

–40°C to 125°C

LT3741IFE#PBF

LT3741IFE#TRPBF

LT3741FE

20-Lead Plastic TSSOP

–40°C to 125°C

LT3741EUF-1#PBF

LT3741EUF-1#TRPBF

37411

20-Lead (4mm × 4mm) Plastic QFN

–40°C to 125°C

LT3741IUF-1#PBF

LT3741IUF-1#TRPBF

37411

20-Lead (4mm × 4mm) Plastic QFN

–40°C to 125°C

LT3741EFE-1#PBF

LT3741EFE-1#TRPBF

LT3741FE-1

20-Lead Plastic TSSOP

–40°C to 125°C

LT3741IFE-1#PBF

LT3741IFE-1#TRPBF

LT3741FE-1

20-Lead Plastic TSSOP

–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/

absoluTe maximum raTings

20 19 18 17 16

TOP VIEW

GND

UF PACKAGE

20-LEAD (4mm

× 4mm) PLASTIC QFN

9 10

EN/UVLO

VREF

CTRL2

GND

CTRL1

GND

SYNC

GND

TJMAX = 125°C, qJA = 37°C/W

EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB

FE PACKAGE

20-LEAD PLASTIC TSSOP

TOP VIEW

VCC_INT

GND

VIN

EN/UVLO

VREF

CTRL2

GND

CTRL1

CBOOT

GND

SYNC

SENSE–

SENSE+

GND

TJMAX = 125°C, qJA = 38°C/W

EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB

pin conFiguraTion

RT Voltage...................................................................3V

FB Voltage...................................................................3V

SS Voltage ..................................................................6V

VCC_INT Voltage...........................................................6V

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

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

Lead Temperature (Soldering, 10 sec)

TSSOP .............................................................. 300°C

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