LT8697_15 datasheet(2/30 Pages) LINER

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LT8697

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For more information www.linear.com/LT8697

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

VIN, EN/UV, PG, ISP, ISN...........................................42V

SYS...........................................................................30V

USB5V .....................................................................3mA

BST Above SW............................................................4V

TR/SS, ICTRL..............................................................4V

RT, RCBL.....................................................................2V

SYNC ..........................................................................6V

Operating Junction Temperature Range (Notes 2, 3)

LT8697E ............................................ –40°C to 125°C

LT8697I ............................................. –40°C to 125°C

LT8697H ............................................ –40°C to 150°C

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

(Note 1)

24 23 22 21

9 10

TOP VIEW

GND

UDD PACKAGE

24-LEAD (3mm

× 5mm) PLASTIC QFN

11 12

SYNC

TR/SS

EN/UV

VIN

PGND

USB5V

SYS

INTVCC

BST

θJA = 46°C/W, θJC = 5°C/W

EXPOSED PAD (PIN 25) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT8697EUDD#PBF

LT8697EUDD#TRPBF

LGGW

24-Lead (3mm

× 5mm) Plastic QFN

–40°C to 125°C

LT8697IUDD#PBF

LT8697IUDD#TRPBF

LGGW

24-Lead (3mm

× 5mm) Plastic QFN

–40°C to 125°C

LT8697HUDD#PBF

LT8697HUDD#TRPBF

LGGW

24-Lead (3mm

× 5mm) Plastic QFN

–40°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/

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

VIN Undervoltage Lockout

2.9

3.4

VIN Shutdown Current

VEN/UV = 0.3V

µA

VIN Current in Regulation

VIN = 12V, ILOAD = 100µA, RT = 56.2k

VIN to Disable Forced Continuous Mode

VIN Rising

Output Sink Current in Forced Continuous Mode

VUSB5V = 5.5V, L = 6.8µH, RT = 56.2k

0.6

1.7

USB5V Voltage

VIN = 12V

4.96

4.91

4.99

5.02

5.04

USB5V Voltage Line Regulation

VIN = 6V to 42V

Regulated Load Voltage Through 0.3Ω

VIN = 12V, ILOAD = 2.1A, Voltage at Point of Load (End

of Cable), RCBL = 13.7k, RCDC = 10k, RSENSE = 20mΩ

4.925

5.075

USB5V Clamp Voltage

IUSB5V = 3mA

ELECTRICAL CHARACTERISTICS The

denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Notes 2, 4)

LT8697 Datasheet(PDF) 2 Page - Linear Technology

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