LTM4645 datasheet(2/34 Pages) LINER

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LTM4646

4646f

For more information www.linear.com/LTM4646

CPWR, VIN1, VIN2....................................... –0.3V to 22V

VSW1, VSW2................................................... –2V to 22V

PGOOD1, PGOOD2, RUN1, RUN2, DRVCC,

INTVCC, EXTVCC, VOUT1, VOUT2, VOUTS1,

VOUTS2..................................................... –0.3V to 6V

TRACK/SS1, TRACK/SS2............................. –0.3V to 5V

FREQ, VRNG, PHASMD,

MODE_PLLIN ............................–0.3V to INTVCC+0.3

VOUTS1– (Note 6)....................................... –0.3V to VFB1

VOUTS2– (Note 6)..........................–0.3V to INTVCC+0.3V

COMP1A, COMP2A (Note 6) ..................... –0.3V to 2.7V

COMP1B, COMP2B, VFB1, VFB2 ................. –0.3V to 2.7V

DRVCC Peak Output Current.................................100mA

Internal Operating Temperature

Range (Note 2) .................................. –40°C to 125°C

Storage Temperature Range .................. –55°C to 125°C

Peak Solder Reflow Package Body Temperature.... 245°C

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

(Note 1)

ORDER INFORMATION

TOP VIEW

BGA PACKAGE

88-LEAD (15mm 11.25mm 5..01mm)

VIN1

SW1

RUN1

SW2

VOUT1

TEMP1–

TEMP1+

TEMP2–

TEMP2+

VOUTS1–

VOUTS1

PHASMD SGND TRACK/SS1

PGOOD1

DRVCC

VFB1

COMP1B

COMP1A

FREQ

CPWR

INTVCC

TRACK/SS2

MODE_

PLLIN CLKOUT

EXTVCC

PGOOD2

VFB2

VOUTS2 COMP2A

COMP2B

VRNG

RUN2

SGND VOUTS2

–

VOUT2

VIN2

GND

TJMAX = 125°C, JCtop = 12.6°C/W, JCbottom = 1.8°C/W,

JB = 2.3°C/W, JA = 9.6°C/W

VALUES DEFINED PER JESD51-12

WEIGHT = 2.1g

PART NUMBER

BALL FINISH

PART MARKING*

PACKAGE

TYPE

MSL

RATING

TEMPERATURE RANGE

(SEE NOTE 2)

DEVICE

FINISH CODE

LTM4646EY#PBF

SAC305 (RoHS)

LTM4646Y

BGA

–40°C to 125°C

LTM4646IY#PBF

LTM4646Y

LTM4646IY

SnPb (63/37)

LTM4646Y

• Consult Marketing for parts specified with wider operating temperature

ranges. *Device temperature grade is indicated by a label on the shipping

container. Ball finish code is per IPC/JEDEC J-STD-609.

• Terminal Finish Part Marking: www.linear.com/leadfree

• Recommended BGA PCB Assembly and Manufacturing Procedures:

www.linear.com/umodule/pcbassembly

• BGA Package and Tray Drawings: www.linear.com/packaging

http://www.linear.com/product/LTM4646#orderinfo

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