LTC3869-2 datasheet(2/50 Pages) LINER

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LTC3839

3839fa

ABSOLUTE MAXIMUM RATINGS

VIN Voltage................................................. –0.3V to 40V

BOOST1, BOOST2 Voltages ....................... –0.3V to 46V

SW1, SW2 Voltages ...................................... –5V to 40V

INTVCC, DRVCC1, DRVCC2, EXTVCC, PGOOD, RUN,

(BOOST1-SW1), (BOOST2-SW2), MODE/PLLIN

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

VOUTSENSE+, VOUTSENSE–, SENSE1+, SENSE2+,

SENSE1–, SENSE2– Voltages ....................... –0.6V to 6V

TRACK/SS Voltage....................................... –0.3V to 5V

DTR, PHASMD, RT, VRNG,

ITH Voltages ........................... –0.3V to (INTVCC + 0.3V)

Operating Junction Temperature Range

(Notes 2, 3, 4)........................................ –40°C to 125°C

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

(Note 1)

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3839EUH#PBF

LTC3839EUH#TRPBF

3839

32-Lead (5mm

× 5mm) Plastic QFN

–40°C to 125°C

LTC3839IUH#PBF

LTC3839IUH#TRPBF

3839

32-Lead (5mm

× 5mm) 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/

PGND

31 30 29 28 27 26 25

10 11 12

TOP VIEW

UH PACKAGE

32-LEAD (5mm

× 5mm) PLASTIC QFN

13 14 15 16

PHASMD

MODE/PLLIN

CLKOUT

SGND

ITH

TRACK/SS

VOUTSENSE

BG2

DRVCC2

EXTVCC

INTVCC

PGND

VIN

DRVCC1

BG1

TJMAX = 125°C, θJA = 44°C/W

EXPOSED PAD (PIN 33) IS PGND, MUST BE SOLDERED TO PCB

PIN CONFIGURATION

ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified operating

junction temperature range, otherwise specifications are at TA = 25°C. VIN = 15V unless otherwise noted (Note 3).

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Main Control Loops

VIN

Input Voltage Operating Range

4.5

VOUT(REG)

Regulated Output Voltage Operating Range VOUT Regulated Differentially with Respect to

VOUTSENSE–

0.6

5.5

Input DC Supply Current

RUN Enabled

Shutdown Supply Current

MODE/PLLIN = 0V, No Load

RUN = 0V

μA

VOUTSENSE(REG) Regulated Differential Feedback Voltage

(VOUTSENSE+ – VOUTSENSE–)

ITH1 = 1.2V (Note 5)

TA = 25°C

TA = 0°C to 85°C

TA = –40°C to 125°C

0.5985

0.596

0.594

0.6

0.6015

0.604

0.606

Regulated Differential Feedback Voltage

Over Line, Load and Common Mode

VIN = 4.5V to 38V, ITH1 = 0.5V to 1.9V

–0.5V < VOUTSENSE– < 0.5V (Notes 5, 7)

0.591

0.6

0.609

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