LTC3644/LTC3644-2

2

Rev. 0

For more information www.analog.com

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

RUN1, RUN2, RUN3, RUN4

MODE/SYNC, FB1, FB2, FB3, FB4

PGOOD1, PGOOD2, PGOOD3, PGOOD4, PHASE

.. –0.3V to 6V

Operating Junction Temperature Range

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

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

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

(Note 1)

F

E

A

B

C

D

2

1

4

3

5

6

BGA PACKAGE

36-BALL (5mm × 5mm × 1.72mm)

JESD51 CONDITION

TOP VIEW

FB2

FB4

SW4

SW3

FB3

FB1

SW1

SW2

GND

GND

PGOOD1

GND

GND

PGOOD4

RUN1

GND

GND

RUN4

PHASE

GND

GND

MODE/SYNC

PGOOD2

GND

GND

PGOOD3

RUN2

GND

GND

RUN3

ORDER INFORMATION

PART NUMBER

TERMINAL FINISH

PART MARKING*

PACKAGE

TYPE

MSL

RATING

TEMPERATURE RANGE

(SEE NOTE 2)

DEVICE

FINISH CODE

LTC3644EY#PBF

SAC305(RoHS)

3644Y

e1

BGA

3

–40°C to 125°C

LTC3644IY#PBF

SAC305(RoHS)

3644Y

e1

BGA

3

–40°C to 125°C

LTC3644EY-2#PBF

SAC305(RoHS)

3644Y2

e1

BGA

3

–40°C to 125°C

LTC3644IY-2#PBF

SAC305(RoHS)

3644Y2

e1

BGA

3

–40°C to 125°C

• Device temperature grade is indicated by a label on the shipping container.

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

• BGA Package and Tray Drawings

• This product is moisture sensitive. For more information, go

to Recommended BGA PCB Assembly and Manufacturing

Procedures.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Operating Voltage

2.7

17

V

Output Voltage

0.6

V

Input Quiescent Current

Forced Continuous Mode (Note 3)

Burst Mode, No Load

5

10

0.1

8

14

1

mA

µA

µA

Regulated Feedback Voltage

l

0.594

0.6

0.606

V

FB Input Current

10

nA

Reference Voltage Line Regulation

0.01

0.025

%/V

Output Voltage Load Regulation

(Note 4)

0.1

0.3

%

l

denotes the specifications which apply over the specified operating

otherwise noted.