ltm8031 Linear Technology Corporation, ltm8031 Datasheet - Page 18

• Manufacturer Part Number: ltm8031
• Description: Ultralow Noise Emc 36v, 1a Dc/dc ?module Regulator
• Manufacturer: Linear Technology Corporation

PACKAGE DESCRIPTION
LTM8031
18
CORNER
PAD 1
4
SUGGESTED PCB LAYOUT
PACKAGE TOP VIEW
TOP VIEW
9.00
BSC
Y
15.00
BSC
0.000
1.270
X
6.350
5.080
3.810
2.540
1.270
2.540
3.810
5.080
6.350
aaa Z
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994
2. ALL DIMENSIONS ARE IN MILLIMETERS
3
4
5. PRIMARY DATUM -Z- IS SEATING PLANE
6. THE TOTAL NUMBER OF PADS: 71
2.40 – 2.60
SYMBOL
0.635 ±0.025 SQ. 71x
bbb
aaa
eee
LAND DESIGNATION PER JESD MO-222, SPP-010 AND SPP-020
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
(Reference LTC DWG # 05-08-1823 Rev Ø)
71-Lead (15mm × 9mm × 2.82mm)
TOLERANCE
DETAIL A
MOLD
DETAIL A
CAP
0.15
0.10
0.05
eee
SUBSTRATE
LGA Package
0.27 – 0.37
S
X
Y
PACKAGE SIDE VIEW
2.670 – 2.970
DETAIL A
SEE NOTES
12.700
PADS
3
BSC
COMPONENT
TRAY PIN 1
1.270
BSC
BEVEL
PIN 1
7
6
1.27
BSC
PACKAGE BOTTOM VIEW
LTMXXXXXX
PACKAGE IN TRAY LOADING ORIENTATION
5
μModule
7.620
BSC
4
3
2
1
DETAIL A
A
B
C
D
E
F
G
H
J
K
L
PAD 1
Ø (0.635)
LGA 71 0108 REV Ø
8031fa