LTC4269-2 datasheet(2/34 Pages) LINER

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LTC4269-2

42692fb

pin conFiguraTion

absoluTe MaxiMuM raTings

(Notes 1, 2)

TOP VIEW

DKD PACKAGE

32-LEAD (7mm 4mm) PLASTIC DFN

SHDN 1

T2P 2

RCLASS 3

NC 4

VPORTN 5

VPORTN 6

NC 7

NC 8

COMP 9

FB 10

ROSC 11

SYNC 12

SS_MAXDC 13

VREF 14

SD_VSEC 15

GND 16

32 VPORTP

31 NC

30 NC

29 PWRGD

28 PWRGD

27 VNEG

26 VNEG

25 NC

24 SOUT

23 VIN

22 OUT

21 PGND

20 DELAY

19 OC

18 ISENSE

17 BLANK

TJMAX = 125°C, θJA = 34°C/W, θJC = 2°C/W

EXPOSED PAD (PIN 33) MUST BE SOLDERED TO

HEAT SINKING PLANE THAT IS CONNECTED TO GND

orDer inForMaTion

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC4269CDKD-2#PBF

LTC4269CDKD-2#TRPBF 42692

32-Lead (7mm

× 4mm) Plastic DFN

0°C to 70°C

LTC4269IDKD-2#PBF

LTC4269IDKD-2#TRPBF

42692

32-Lead (7mm

× 4mm) Plastic DFN

–40°C to 85°C

LEAD BASED FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC4269CDKD-2

LTC4269CDKD-2#TR

42692

32-Lead (7mm

× 4mm) Plastic DFN

0°C to 70°C

LTC4269IDKD-2

LTC4269IDKD-2#TR

42692

32-Lead (7mm

× 4mm) Plastic DFN

–40°C to 85°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/

Pins with Respect to VPORTN

VPORTP Voltage ........................................ –0.3V to 100V

VNEG Voltage.........................................–0.3V to VPORTP

VNEG Pull-Up Current ..................................................1A

SHDN....................................................... –0.3V to 100V

RCLASS, Voltage ........................................... –0.3V to 7V

RCLASS Source Current ..........................................50mA

PWRGD Voltage (Note 3)

Low Impedance Source .... VNEG – 0.3V to VNEG + 11V

Sink Current.........................................................5mA

PWRGD, T2P Voltage ............................... –0.3V to 100V

PWRGD, T2P Sink Current .....................................10mA

Pins with Respect to GND

VIN (Note 4)................................................ –0.3V to 25V

SYNC, SS_MAXDC, SD_VSEC,

ISENSE, OC.................................................... –0.3V to 6V

COMP, BLANK, DELAY.............................. –0.3V to 3.5V

FB ................................................................ –0.3V to 3V

ROSC Current........................................................ –50µA

VREF Source Current ..............................................10mA

Operating Ambient Temperature Range

LTC4269C-2............................................. 0°C to 70°C

LTC4269I-2..........................................–40°C to 85°C

LTC4269-2 数据表(PDF) 2 Page - Linear Technology

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