LTC3853_15 datasheet(2/36 Pages) LINER

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LTC3853

3853fc

For more information www.linear.com/LTC3853

ABSOLUTE MAXIMUM RATINGS

Input Supply Voltage (VIN)......................... 28V to –0.3V

Topside Driver Voltages

BOOST1, BOOST2, BOOST3 .................. 34V to –0.3V

Switch Voltage (SW1, SW2, SW3) ................ 28V to –5V

INTVCC, RUN1, RUN2, RUN3, PGOOD12, PGOOD3,

DRVCC12, EXTVCC, (BOOST1-SW1),

(BOOST2-SW2), (BOOST3-SW3)................. 6V to –0.3V

SENSE1+, SENSE2+, SENSE1–,

SENSE2– Voltages .................................... 5.7V to –0.3V

SENSE3+, SENSE3–.................................... 14V to –0.3V

VFB2 .......................................................300µA Max IFB2

MODE/PLLIN, ILIM,TK/SS1,

TK/SS2, TK/SS3 Voltages.....................INTVCC to –0.3V

ITH1, ITH2, ITH3, VFB1, VFB3 Voltages......INTVCC to –0.3V

INTVCC Peak Output Current................................150mA

Operating Junction Temperature Range (Note 3)

E-Grade, I-Grade................................ –40°C to 125°C

H-Grade ............................................. –40°C to 150°C

MP-Grade .......................................... –55°C to 150°C

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

(Note 1)

38 37 36 35 34 33 32 31

12 13 14 15

TOP VIEW

16 17 18 19

TK/SS2

TK/SS3

SENSE1+

SENSE1–

SENSE2+

SENSE2–

SENSE3+

SENSE3–

VFB1

ITH1

BG1

DRVCC12

BG2

SW2

TG2

BOOST2

VIN

EXTVCC

INTVCC

BG3

UJ PACKAGE

40-LEAD (6mm

× 6mm) PLASTIC QFN

TJMAX = 150°C, θJA = 33°C/W

EXPOSED PAD (PIN 41) IS PGND, MUST BE SOLDERED TO PCB

PIN CONFIGURATION

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3853EUJ#PBF

LTC3853EUJ#TRPBF

LTC3853UJ

40-Lead (6mm × 6mm) Plastic QFN

–40°C to 125°C

LTC3853IUJ#PBF

LTC3853IUJ#TRPBF

LTC3853UJ

40-Lead (6mm × 6mm) Plastic QFN

–40°C to 125°C

LTC3853HUJ#PBF

LTC3853HUJ#TRPBF

LTC3853UJ

40-Lead (6mm × 6mm) Plastic QFN

–40°C to 150°C

LTC3853MPUJ#PBF

LTC3853MPUJ#TRPBF

LTC3853UJ

40-Lead (6mm × 6mm) Plastic QFN

–55°C to 150°C

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

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/

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