LTM4644 datasheet(2/36 Pages) LINER

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LTM4650A-1

4650a1f

For more information www.linear.com/LTM4650A-1

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

VIN ............................................................. –0.3V to 18V

VSW1, VSW2....................................................–1V to 18V

PGOOD1, PGOOD2, RUN1, RUN2,

INTVCC, EXTVCC .......................................... –0.3V to 6V

MODE_PLLIN, fSET, TRACK1, TRACK2,

DIFFOUT, PHASMD ...............................–0.3V to INTVCC

VOUT1, VOUT2, VOUTS1, VOUTS2 (Note 5)........ –0.3V to 6V

DIFFP, DIFFN .........................................–0.3V to INTVCC

COMP1, COMP2, VFB1, VFB2 (Note 5)........ –0.3V to 2.7V

INTVCC Peak Output Current..................................50mA

Internal Operating Temperature Range

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

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

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

(Note 1)

ORDER INFORMATION

BGA PACKAGE

144-LEAD (16mm

× 16mm × 5.01mm)

TOP VIEW

TEMP

CLKOUT

SW1

PHASMD

EXTVCC

SW2

PGOOD1

PGOOD2

RUN2

TRACK2

INTVCC

VOUTS2

DIFFP

DIFFOUT

DIFFN

RUN1

TRACK1

MODE_PLLIN

VFB1

VOUTS1

fSET

SGND

COMP1 COMP2

SGND

VFB2

VIN

VOUT2

GND

VOUT1

SGND

GND

TJMAX = 125°C, θJA = 7°C/W, θJCbottom = 1.5°C/W,

θJCtop = 3.7°C/W, θJB + θJBA ≅ 7°C/W

θ VALUES DEFINED PER JESD 51-12

WEIGHT = 3.8g

PART NUMBER

PAD OR BALL FINISH

PART MARKING*

PACKAGE

TYPE

MSL

RATING

TOTAL DC

ACCURACY

TEMPERATURE

RANGE (Note 2)

DEVICE

FINISH CODE

LTM4650AEY-1#PBF

SAC305 (RoHS)

LTM4650AY-1

BGA

±1%

–40°C to 125°C

LTM4650AIY-1#PBF

SAC305 (RoHS)

LTM4650AY-1

BGA

±1%

–40°C to 125°C

LTM4650AIY-1

SnPb (63/37)

LTM4650AY-1

BGA

±1%

–40°C to 125°C

Consult Marketing for parts specified with wider operating temperature

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

container. Pad or ball finish code is per IPC/JEDEC J-STD-609.

• Terminal Finish Part Marking:

www.linear.com/leadfree

• Recommended LGA and BGA PCB Assembly and Manufacturing

Procedures:

www.linear.com/umodule/pcbassembly

• LGA and BGA Package and Tray Drawings:

www.linear.com/packaging

http://www.linear.com/product/LTM4650A-1#orderinfo

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN

Input DC Voltage

4.5

VOUT

Output Voltage

0.6

5.5

VOUT1(DC),

VOUT2(DC)

Output Voltage, Total DC Variation

with Line and Load (Note 7)

CIN = 22µF × 3, COUT = 100µF × 1 Ceramic,

470µF POSCAP

VIN = 4.5V to 16V,

VOUT = 1.2V, IOUT = 0A to 25A

1.188

1.2

1.212

ELECTRICAL CHARACTERISTICS The

denotes the specifications which apply over the specified internal

operating temperature range. Specified as each individual output channel. TA = 25°C (Note 2), VIN = 12V and VRUN1, VRUN2 at 5V

unless otherwise noted. Per the typical application in Figure 34.

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