LTM4605
23
4605fd
For more information www.linear.com/LTM4605
package Description
LGA Package
141-Lead (15mm × 15mm × 2.82mm)
(Reference LTC DWG # 05-08-1815 Rev C)
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994
2. ALL DIMENSIONS ARE IN MILLIMETERS
LAND DESIGNATION PER JESD MO-222, SPP-010
4
3
DETAILS OF PAD #1 IDENTIFIER ARE OPTIONAL,
BUT MUST BE LOCATED WITHIN THE ZONE INDICATED.
THE PAD #1 IDENTIFIER MAY BE EITHER A MOLD OR
MARKED FEATURE
5 PAD #1 IDENTIFIER ON THE PACKAGE BOTTOM,
CAN BE SHIPPED WITH OR WITHOUT A TRIANGLE MARKER.
6. PRIMARY DATUM -Z- IS SEATING PLANE
7. THE TOTAL NUMBER OF PADS: 141
SYMBOL
aaa
bbb
eee
TOLERANCE
0.15
0.10
0.05
2.72 – 2.92
DETAIL B
DETAIL C
DETAIL B
SUBSTRATE
MOLD
CAP
0.27 – 0.37
2.45 – 2.55
bbb Z
Z
15
BSC
PACKAGE TOP VIEW
15
BSC
4
PAD 1
CORNER
X
Y
aaa Z
aaa Z
DETAIL A
13.97
BSC
1.27
BSC
13.97
BSC
0.12 – 0.28
PACKAGE BOTTOM VIEW
PAD 1
3
5
PADS
SEE NOTES
DETAIL A
0.630 ±0.025 SQ. 141x
S
YXeee
SUGGESTED PCB LAYOUT
TOP VIEW
0.0000
0.6350
0.6350
1.9050
1.9050
3.1750
3.1750
4.4450
4.4450
5.7150
5.7150
6.9850
6.9850
6.9850
5.7150
5.7150
4.4450
4.4450
3.1750
3.1750
1.9050
1.9050
0.6350
0.6350
0.0000
6.9850
LGA 141 1212 REV C
LTMXXXXXX
µModule
TRAY PIN 1
BEVEL
PACKAGE IN TRAY LOADING ORIENTATION
COMPONENT
PIN “A1”
L
K
J
H
G
F
E
D
C
B
M
A
1234567810 91112
DETAIL C
8 PACKAGE ROW AND COLUMN LABELING MAY VARY
AMONG µModule PRODUCTS. REVIEW EACH PACKAGE
LAYOUT CAREFULLY
!
8
