LTC3894 datasheet(2/32 Pages) LINER

2 / 32 page

LTC3894

Rev 0

For more information www.analog.com

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

Input Supply Voltage (VIN), RUN.............. –0.3V to 150V

SENSE+, SENSE–, PGOOD Voltage............. –0.3V to 65V

VIN-VCAP Voltage........................................ –0.3V to 10V

VFB, PLLIN/MODE, PGUV, OVLO,

EXTS Voltages ............................................. –0.3V to 6V

TRACK/SS Voltage (Note 11) .................... –0.3V to 2.8V

ITH, FREQ Voltage........................................ –0.3V to 5V

DRVUV/EXTG Voltage.................................. –0.3V to 9V

Operating Junction Temperature Range (Notes 2, 3)

LTC3894E, LTC3894I......................... –40°C to 125°C

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

Lead Temperature (Soldering, 10 sec)...................300°C

(Note 1)

FE PACKAGE

20(16)-LEAD PLASTIC TSSOP

TJMAX = 150°C, θJA = 38°C/W

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

ELECTRICAL AND THERMAL CHARACTERISTICS

TOP VIEW

GATE

RUN

SENSE+

SENSE–

ITH

PGUV

VFB

TRACK/SS

VIN

CAP

DRVUV/EXTG

EXTS

OVLO

FREQ

PGOOD

PLLIN/MODE

GND

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3894EFE#PBF

LTC3894EFE#TRPBF

LTC3894FE

20(16)-Lead Plastic TSSOP

–40°C to 125°C

LTC3894IFE#PBF

LTC3894IFE#TRPBF

LTC3894FE

20(16)-Lead Plastic TSSOP

–40°C to 125°C

Consult ADI 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/. Some packages are available in 500 unit reels through

designated sales channels with #TRMPBF suffix.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Input Supply

VIN

Input Voltage Operating Range

(Note 4) DRVUV = 0V

4.5

150

VOUT

Regulated Output Voltage Set Point

0.8

No Load DC Supply Current (Note 5)

Shutdown VIN Pin Current

RUN = 0V

µA

Sleep Mode VIN Pin Current

VSENSE– = 2.5V, VFB = 0.83V

µA

VSENSE– ≥ 3.2V, VFB = 0.83V

µA

Sleep Mode SENSE– Pin Current (Note 6)

VSENSE– ≥ 3.2V, VFB = 0.83V

µA

Pulse-Skipping Mode VIN Pin Current

VFB = 0.83V

VSENSE– = 0V

VSENSE– = 3.3V

VSENSE– = 5V

1.8

1.5

0.8

The l denotes the specifications which apply over the specified operating

junction temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, unless otherwise noted. (Note 2)

ELECTRICAL CHARACTERISTICS

http://www.linear.com/product/LTC3894#orderinfo

LTC3894 Datasheet(PDF) 2 Page - Linear Technology

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