Datasheet

LTM8028
22
8028fa
For more information www.linear.com/LTM8028
package DescripTion
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
6.350
6.350
3.810
3.810
5.080
5.080
2.540
2.540
1.270
1.270
BGA Package
114-Lead (15mm × 15mm × 4.92mm)
(Reference LTC DWG # 05-08-1894 Rev A)
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: 114
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
PACKAGE TOP VIEW
4
PAD “A1”
CORNER
X
Y
aaa Z
aaa Z
PACKAGE BOTTOM VIEW
3
SEE NOTES
SUGGESTED PCB LAYOUT
TOP VIEW
DETAIL A
PAD 1
0.000
6.350 6.350 3.810 3.810 5.080 5.080 2.540 2.540 1.270 1.270 0.000
F G H L J K E A B C D
2 14 311 9 5
10 678
D
0.630 ±0.025 Ø 114x
E
b
e
e
b
F
G
BGA 114 1112 REV A
TRAY PIN 1
BEVEL
PACKAGE IN TRAY LOADING ORIENTATION
COMPONENT
PIN “A1”
LTMXXXXXX
µModule
DETAIL A
Øb (114 PLACES)
DETAIL B
SUBSTRATE
0.27 – 0.37
3.95 – 4.05
// bbb Z
A
A1
b1
ccc Z
DETAIL B
PACKAGE SIDE VIEW
MOLD
CAP
Z
M
X YZddd
M
Zeee
A2
SYMBOL
A
A1 A2
b
b1
D
E
e F
G
aaa
bbb
ccc
ddd
eee
MIN
4.72 0.50 4.22 0.60 0.60
NOM
4.92 0.60 4.32 0.75 0.63 15.0 15.0 1.27
12.70 12.70
MAX
5.12 0.70 4.42 0.90 0.66 0.15 0.10 0.20 0.30 0.15
NOTES
DIMENSIONS
TOTAL NUMBER OF BALLS: 114
7 PACKAGE ROW AND COLUMN LABELING MAY VARY
AMONG µModule PRODUCTS. REVIEW EACH PACKAGE LAYOUT CAREFULLY
!
7
SEE NOTES