LTM4657 datasheet(2/24 Pages) AD

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LTM4705

Rev. 0

For more information www.analog.com

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

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

VOUT1, VOUT2, PGOOD1, PGOOD2................ –0.3V to 6V

RUN1, RUN2 .............................................. –0.3V to 22V

INTVCC, TRACK/SS1, TRACK/SS2............ –0.3V to 3.6V

SYNC/MODE, COMP1, COMP2,

FB1, FB2,...............................................–0.3V to INTVCC

Operating Junction Temperature Range

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

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

Peak Solder Reflow Body Temperature .................260°C

(Note 1)

BGA PACKAGE

63-PIN (6.25mm × 7.5mm × 3.22mm)

TJMAX = 125°C, θJCtop = 22°C/W, θJCbottom = 4°C/W,

θJA = 17°C/W, WEIGHT = 0.46g

TOP VIEW

VOUT1

GND

COMP1 FB1

FREQ RUN1

RUN2

COMP2

FB2

PGOOD1

TRACK/SS1

INTVCC

SGND

SYNC/MODE

PGOOD2

TRACK/SS2

VOUT2

VIN2

VIN1

ORDER INFORMATION

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Switching Regulator Section: Per Channel

VIN1

Input DC Voltage

3.1

VIN2

Input DC Voltage

3.1V < VIN1 < 20V

1.5

VOUT(RANGE) Output Voltage Range

0.6

5.5

VOUT(DC)

Output Voltage, Total Variation with

Line and Load

CIN = 22µF, COUT = 100µF Ceramic, RFB = 40.2k, MODE =

INTVCC, VIN1 = VIN2 = 3.1V to 20V,

IOUT = 0A to 5A

1.477

1.5

1.523

VRUN

RUN Pin On Threshold

RUN Threshold Rising

RUN Threshold Falling

1.16

0.96

1.27

1.35

1.06

IQ(VIN)

Input Supply Bias Current

VIN1 = VIN2 = 12V, VOUT = 1.5V, MODE = GND

VIN1 = VIN2 = 12V, VOUT = 1.5V, MODE = INTVCC, IOUT = 0.5A

Shutdown, RUN1 = RUN2 = 0

µA

The l denotes the specifications which apply over the full operating

temperature range (Note 2), otherwise specifications are at TA = 25°C (Note 2), VIN1 = VIN2 = 12V, unless otherwise noted per the

typical application shown in Figure 23.

PART NUMBER

PAD OR BALL FINISH

PART MARKING*

PACKAGE

TYPE

MSL

RATING

TEMPERATURE RANGE

(SEE NOTE 2)

DEVICE

FINISH CODE

LTM4705EY#PBF

Au (RoHS)

LTM4705Y

BGA

–40°C to 125°C

LTM4705IY#PBF

LTM4705Y

• Contact the factory for parts specified with wider operating temperature

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

• Recommended LGA and BGA PCB Assembly and Manufacturing

Procedures

• LGA and BGA Package and Tray Drawings

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