LTC7124 datasheet(2/22 Pages) LINER

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LTC7124

7124fa

For more information www.linear.com/LTC7124

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

VIN1, VIN2 (Note 2) ..................................... –0.3V to 17V

RUN1, RUN2 .............................................. –0.3V to 17V

MODE/SYNC ................................–0.3V to INTVCC+0.3V

ILIM, RT........................................–0.3V to INTVCC+0.3V

ITH1, ITH2....................................–0.3V to INTVCC+0.3V

PGOOD1, PGOOD2....................................... –0.3V to 6V

FB1, FB2....................................................... –0.3V to 6V

Operating Junction Temperature Range

(Note 3).............................................. –40°C to 125°C

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

(Note 1)

9 10

TOP VIEW

UDD PACKAGE

VARIATION: AA

24-LEAD (3mm × 5mm) PLASTIC QFN

11 12

24 23 22 21

GND

VIN1

ILIM

VIN2

GND

SW1

BOOST1

MODE/SYNC

INTVCC

BOOST2

SW2

TJMAX = 150°C, θJA = 22°C/W

EXPOSED PAD (PINS 25 & 26) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN

Operating Voltage

3.1

VOUT

Output Voltage

(Note 6)

0.6

0.99 • VIN

Input Quiescent Current

Active Mode, Single Channel (Note 4)

Active Mode, Dual Channels (Note 4)

Burst Mode, IOUT1 = IOUT2 = 0A

Burst Mode, Single Channel, IOUT = 0A

Shutdown Mode; VRUN1 = VRUN2 = 0V

1.5

5.5

0.1

2.75

µA

VFB

Regulated Feedback Voltage

(Note 5)

0.596

0.594

0.6

0.604

0.606

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC7124EUDD#PBF

LTC7124EUDD#TRPBF

LGVF

24-Lead (3mm × 5mm) Plastic QFN

–40°C to 125°C

LTC7124IUDD#PBF

LTC7124IUDD#TRPBF

LGVF

24-Lead (3mm × 5mm) Plastic QFN

–40°C to 125°C

Consult LTC Marketing for parts specified with wider operating temperature ranges.

Consult LTC Marketing for information on nonstandard 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/

ELECTRICAL CHARACTERISTICS The

denotes the specifications which apply over the specified operating

junction temperature range, otherwise specifications are at TA = 25°C. VIN1 = VIN2 = 12V, unless otherwise noted. (Note 3)

http://www.linear.com/product/LTC7124#orderinfo

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