Datasheet
LTM4628
2
4628fe
For more information www.linear.com/LTM4628
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
V
IN
............................................................. –0.3V to 28V
V
SW1
, V
SW2
....................................................–1V to 28V
PGOOD1, PGOOD2, RUN1, RUN2,
INTV
CC
, EXTV
CC
........................................... –0.3V to 6V
MODE_PLLIN, f
SET
, TRACK1, TRACK2,
DIFFOUT, PHASMD ............................... –0.3V to INTV
CC
V
OUT1
, V
OUT2
, V
OUTS1
, V
OUTS2
..................... –0.3V to 6V
(Note 1)
LGA PACKAGE
144-LEAD (15mm × 15mm × 4.32mm)
TOP VIEW
TEMP
COMP2
V
IN
1 2 3 4 5 6 7
V
FB1
V
FB2
SGND
8 109 11 12
L
K
J
H
SW1
CLKOUTPHASMD
MODE_PLLIN RUN1
GNDGND
SW2
TRACK2
DIFFP DIFFN
G
F
E
D
C
B
M
A
V
OUT1
V
OUT2
V
OUTS1
V
OUTS2
SGND
GND
TRACK1 COMP1
DIFFOUT RUN2
PGOOD1PGOOD2
f
SET
SGND
EXTV
CC
INTV
CC
T
JMAX
= 125°C, θ
JCtop
= 17°C/W,θ
JCbottom
= 2.75°C/W,
θ
JB
+ θ
BA
= 11°C/W, θ
JA
= 9.5°C/W–11°C/W,
θ
BA
= BOARD TO AMBIENT RESISTANCE, θ VALUES DEFINED PER JESD 51-12
WEIGHT = 2.7g
BGA PACKAGE
144-LEAD (15mm × 15mm × 4.92mm)
TOP VIEW
TEMP
COMP2
V
IN
1 2 3 4 5 6 7
V
FB1
V
FB2
SGND
8 109 11 12
L
K
J
H
SW1
CLKOUTPHASMD
MODE_PLLIN RUN1
GNDGND
SW2
TRACK2
DIFFP DIFFN
G
F
E
D
C
B
M
A
V
OUT1
V
OUT2
V
OUTS1
V
OUTS2
SGND
GND
TRACK1 COMP1
DIFFOUT RUN2
PGOOD1PGOOD2
f
SET
SGND
EXTV
CC
INTV
CC
T
JMAX
= 125°C, θ
JCtop
= 17°C/W,θ
JCbottom
= 2.75°C/W,
θ
JB
+ θ
BA
= 11°C/W, θ
JA
= 9.5°C/W–11°C/W,
θ
BA
= BOARD TO AMBIENT RESISTANCE, θ VALUES DEFINED PER JESD 51-12
WEIGHT = 2.9g
ORDER INFORMATION
DIFFP, DIFFN ......................................... –0.3V to INTV
CC
V
FB1
, V
FB2
, COMP1, COMP2 (Note 6) ........ –0.3V to 2.7V
INTV
CC
Peak Output Current ................................100mA
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
PART NUMBER PAD OR BALL FINISH
PART MARKING*
PACKAGE
TYPE
MSL
RATING
TEMPERATURE RANGE
(Note 2)DEVICE FINISH CODE
LT M 4628EV#PBF Au (RoHS) LT M 4628V e4 LGA 3 –40°C to 125°C
LT M 4628IV#PBF Au (RoHS) LT M 4628V e4 LGA 3 –40°C to 125°C
LT M 4628EY#PBF SAC305 (RoHS) LT M 4628Y e1 BGA 3 –40°C to 125°C
LT M 4628IY#PBF SAC305 (RoHS) LT M 4628Y e1 BGA 3 –40°C to 125°C
LT M 4628IY SnPb (63/37) LT M 4628Y e0 BGA 3 –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 T
ray Drawings:
www.linear.com/packaging