LT8640_15 datasheet(2/26 Pages) LINER

2 / 26 page

LT8640

8640f

For more information www.linear.com/LT8640

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

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

BIAS..........................................................................25V

FB, TR/SS . .................................................................4V

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

Operating Junction Temperature Range (Note 2)

LT8640E ............................................ –40°C to 125°C

LT8640I ............................................. –40°C to 125°C

LT8640H............................................ –40°C to 150°C

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

(Note 1)

ELECTRICAL CHARACTERISTICS The

denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C.

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT8640EUDC#PBF

LT8640EUDC#TRPBF

LGNJ

18-Lead (3mm × 4mm) Plastic QFN

–40°C to 125°C

LT8640IUDC#PBF

LT8640IUDC#TRPBF

LGNJ

18-Lead (3mm × 4mm) Plastic QFN

–40°C to 125°C

LT8640HUDC#PBF

LT8640HUDC#TRPBF

LGNJ

18-Lead (3mm × 4mm) 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.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/

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Input Voltage

2.9

3.4

VIN Quiescent Current

VEN/UV = 0V

0.75

µA

VEN/UV = 2V, Not Switching, VSYNC = 0V

1.7

µA

VEN/UV = 2V, Not Switching, VSYNC = 2V

0.3

0.5

VIN Current in Regulation

VOUT = 0.97V, VIN = 6V, Output Load = 100µA

VOUT = 0.97V, VIN = 6V, Output Load = 1mA

220

350

µA

Feedback Reference Voltage

VIN = 6V, ILOAD = 0.5A

0.964

0.958

0.970

0.976

0.982

Feedback Voltage Line Regulation

VIN = 4.0V to 42V, ILOAD = 0.5A

0.004

0.02

%/V

20 19 18 17

TOP VIEW

UDC PACKAGE

18-LEAD (3mm

× 4mm) PLASTIC QFN

BIAS

INTVCC

BST

VIN1

GND1

TR/SS

EN/UV

VIN2

GND2

θJA = 40°C/W, θJC(PAD) = 12°C/W

EXPOSED PAD (PINS 21, 22) ARE SW, SHOULD BE SOLDERED TO PCB

NOTE: PINS 5 AND 12 ARE REMOVED. CONFIGURATION DOES NOT MATCH

JEDEC 20-LEAD PACKAGE OUTLINE

LT8640 Datasheet(PDF) 2 Page - Linear Technology

LT8640 Datasheet(HTML) 2 Page - Linear Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

Datasheet Descarga

Enlace URL