Datasheet

LTM8023
21
8023fj
For more information www.linear.com/LTM8023
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
PACKAGE DESCRIPTION
PACKAGE TOP VIEW
4
PIN “A1”
CORNER
Y
X
aaa Z
aaa Z
DETAIL A
PACKAGE BOTTOM VIEW
3
SEE NOTES
H G F E D C B A
1234567
PIN 1
BGA 50 1212 REV A
TRAY PIN 1
BEVEL
PACKAGE IN TRAY LOADING ORIENTATION
COMPONENT
PIN “A1”
NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994 2. ALL DIMENSIONS ARE IN MILLIMETERS BALL DESIGNATION PER JESD MS-028 AND JEP95 5. PRIMARY DATUM -Z- IS SEATING PLANE 6. SOLDER BALL COMPOSITION CAN BE 96.5% Sn/3.0% Ag/0.5% Cu OR Sn Pb EUTECTIC
4 3
DETAILS OF PIN #1 IDENTIFIER ARE OPTIONAL, BUT MUST BE LOCATED WITHIN THE ZONE INDICATED. THE PIN #1 IDENTIFIER MAY BE EITHER A MOLD OR MARKED FEATURE
DETAIL A
Øb (50 PLACES)
DETAIL B
SUBSTRATE
A
A1
b1
ccc Z
DETAIL B
PACKAGE SIDE VIEW
MOLD
CAP
Z
M
X YZddd
M
Zeee
SYMBOL
A
A1 A2
b
b1
D
E
e F
G
H1 H2
aaa
bbb
ccc
ddd
eee
MIN
3.22 0.50 2.72 0.71 0.60 0.27 2.45
NOM
3.42 0.60 2.82 0.78 0.63
11.25
9.0
1.27 8.89 7.62 0.32 2.50
MAX
3.62 0.70 2.92 0.85 0.66 0.37 2.55 0.15 0.10 0.20 0.30 0.15
NOTES
DIMENSIONS
TOTAL NUMBER OF BALLS: 50
A2
D
E
e
b
F
G
SUGGESTED PCB LAYOUT
TOP VIEW
0.000 0.635 1.905 0.635 3.175 1.905 4.445 3.175 4.445
3.810
2.540
1.270
3.810
2.540
1.270
0.3175
0.3175
0.000
4.13 4.76
LTMXXXXXX
µModule
// bbb Z
Z
H2
H1
0.630 ±0.025 Ø 50x
BGA Package
50-Lead (11.25mm × 9.00mm × 3.42mm)
(Reference LTC DWG # 05-08-1883 Rev A)
7 PACKAGE ROW AND COLUMN LABELING MAY VARY
AMONG µModule PRODUCTS. REVIEW EACH PACKAGE LAYOUT CAREFULLY
!
7
SEE NOTES
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