LTM4622 datasheet(2/24 Pages) AD

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LTM4663

Rev. A

For more information www.analog.com

PART NUMBER

PAD FINISH

PART MARKING*

PACKAGE

TYPE

MSL

RATING

TEMPERATURE RANGE

(SEE NOTE 2)

DEVICE

FINISH CODE

LTM4663EV#PBF

Au (RoHS)

4663V

LGA

–40°C to 125°C

LTM4663IV#PBF

–40°C to 125°C

• Contact the factory for parts specified with wider operating temperature

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

• Recommended LGA Assembly and Manufacturing Procedures

• LGA Package and Tray Drawings

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

PVIN, SVIN............................................... –0.3V to 5.75V

VLDR, VPWM .............................................. –0.3V to PVIN

TFB, TSET, PAMPN, SFB,

VLIM/SD, ILIM, EN/SY ................................ –0.3V to SVIN

TAMPOUT, PAMPOUT, ITEC, VTEC ........... –0.3V to 5.75V

VREF ............................................................. –0.3V to 3V

Operating Junction Temperature

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

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

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

(Note 1)

GNDP

PVIN

VLDR

GNDL

VPWM

PVIN

VLDR

GNDL

SFB

VTEC

ITEC

TFB TAMPOUT

GNDA

EN/SY PAMPOUT PAMPN

VREF

SVIN

ILIM

VLIM/SD

TSET

LGA PACKAGE

25-LEAD (3.5mm × 4mm × 1.3mm)

TOP VIEW

NOTES:

1) θJC VALUES ARE DETERMINED BY SIMULATION PER JESD51 CONDITIONS.

2) θJA VALUE IS OBTAINED WITH DEMO BOARD.

3) REFER TO PAGES 16, 17 FOR LAB MEASUREMENT AND DE-RATING INFORMATION.

TJMAX = 125°C, θJCtop = 34°C/W ,

θJCbottom = 12°C/W, θJA = 36°C/W

WEIGHT = 60mg

ORDER INFORMATION

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

PVIN

Power Input Voltage

2.7

5.5

SVIN

Signal Input Voltage

2.7

5.5

IQ(SVIN)

Input Supply Bias Current

PWM Not Switching

Shutdown, EN/SY = GND

3.8

480

5.5

700

µA

UVLO

Undervoltage Lockout

SVIN Rising

2.45

2.55

2.65

UVLO_HYS

UVLO Hysteresis

VREF

Reference Voltage

2.475

2.5

2.525

VTEC

Max TEC Differential Voltage

No Load

93% • PVIN

ITEC

Max TEC Current

1.5

ISFB

SFB Bias Current

(Note 3)

µA

tSS

Soft-Start Time

150

VLIM/SD

Shutdown Voltage Threshold

0.07

The l denotes the specifications which apply over the specified operating

temperature range, otherwise specifications are at TA = 25°C (Note 2), PVIN = SVIN = 5V, per the typical application.

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