LTM8025
18
8025fc
For more information www.linear.com/LTM8025
package DescripTion
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994
2. ALL DIMENSIONS ARE IN MILLIMETERS
LAND DESIGNATION PER JESD MO-222, SPP-010
5. PRIMARY DATUM -Z- IS SEATING PLANE
6. THE TOTAL NUMBER OF PADS: 70
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
SYMBOL
aaa
bbb
eee
TOLERANCE
0.15
0.10
0.05
4.22 – 4.42
DETAIL B
DETAIL B
SUBSTRATE
MOLD
CAP
0.27 – 0.37
3.95 – 4.05
// bbb Z
Z
9
BSC
PACKAGE TOP VIEW
15
BSC
4
PAD 1
CORNER
X
Y
aaa Z
aaa Z
DETAIL A
7.62
BSC
1.27
BSC
12.70
BSC
L
K
J
H
G
F
E
D
C
B
PACKAGE BOTTOM VIEW
C(0.30)
PAD 1
3
PADS
SEE NOTES
A
1234567
0.000
1.270
1.270
2.540
2.540
3.810
3.810
6.350
6.350
3.810
3.810
5.080
5.080
2.540
2.540
1.270
1.270
0.000
LGA 70 1212 REV A
LTMXXXXXX
µModule
TRAY PIN 1
BEVEL
PACKAGE IN TRAY LOADING ORIENTATION
COMPONENT
PAD “A1”
SUGGESTED PCB LAYOUT
TOP VIEW
LGA Package
70-Lead (15mm × 9mm × 4.32mm)
(Reference LTC DWG # 05-08-1817 Rev A)
7 PACKAGE ROW AND COLUMN LABELING MAY VARY
AMONG µModule PRODUCTS. REVIEW EACH PACKAGE
LAYOUT CAREFULLY
!
7
SEE NOTES
DETAIL A
0.635 ±0.025 SQ. 70x
S
YXeee
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
