05-08-1804

LGA Package
50-Lead (11.25mm × 9.00mm × 2.82mm)
aaa Z
(Reference LTC DWG # 05-08-1804 Rev C)
11.25
BSC
X
8.89
BSC
2.72 – 2.92
Y
SEE NOTES
7
0.605 – 0.665
7
6
0.605 – 0.665
MOLD
CAP
9.00
BSC
SUBSTRATE
5
7.62
BSC
4
0.27 – 0.37
3
bbb Z
PAD 1
CORNER
4
Z
2.45 – 2.55
2
DETAIL A
1.27
BSC
1
aaa Z
PACKAGE TOP VIEW
PADS
SEE NOTES
4.445
3.175
1.905
0.635
0.000
0.635
1.905
3.175
4.445
DETAIL A
PACKAGE SIDE VIEW
3
H
G
F
E
D
C
B
A
PACKAGE BOTTOM VIEW
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994
2. ALL DIMENSIONS ARE IN MILLIMETERS
3.810
2.540
3
LAND DESIGNATION PER JESD MO-222, SPP-010 AND SPP-020
4
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 A
MARKED FEATURE
1.270
5. PRIMARY DATUM -Z- IS SEATING PLANE
0.3175
LTMXXXXXX
µModule
6. THE TOTAL NUMBER OF PADS: 50
0.3175
7
1.270
2.540
!
PACKAGE ROW AND COLUMN LABELING MAY VARY
AMONG µModule PRODUCTS. REVIEW EACH PACKAGE
LAYOUT CAREFULLY
SYMBOL TOLERANCE
aaa
0.15
bbb
0.10
0.3175
0.9525
3.810
0.635
0.000
SUGGESTED PCB LAYOUT
TOP VIEW
TRAY PIN 1
BEVEL
PACKAGE IN TRAY LOADING ORIENTATION
LGA 50 0113 REV C
C(0.30)
PAD 1
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