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LT3476
PACKAGE DESCRIPTION
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
UHF Package
38-Lead Plastic QFN (5mm × 7mm)
(Reference LTC DWG # 05-08-1701 Rev C)
0.70 ± 0.05
5.50 ± 0.05
4.10 ± 0.05
3.00 REF
5.15 ± 0.05
3.15 ± 0.05
0.25 ± 0.05
0.50 BSC
5.5 REF
6.10 ± 0.05
7.50 ± 0.05
RECOMMENDED SOLDER PAD LAYOUT
APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED
PACKAGE
OUTLINE
5.00 ± 0.10
0 .75 ± 0.0 5
0.00 – 0.05
3.00 REF
37
38
PIN 1 NOTCH
R = 0.30 TYP OR
0.35 × 45 ° CHAMFER
PIN 1
TOP MARK
(SEE NOTE 6)
0.40 ± 0.10
1
2
7.00 ± 0.10
5.50 REF
5.15 ± 0.10
3.15 ± 0.10
(UH) QFN REF C 1107
0.200 REF 0.25 ± 0.05
0.50 BSC
R = 0.125
TYP
R = 0.10
TYP
BOTTOM VIEW—EXPOSED PAD
NOTE:
1. DRAWING CONFORMS TO JEDEC PACKAGE
OUTLINE M0-220 VARIATION WHKD
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.20mm ON ANY SIDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION
ON THE TOP AND BOTTOM OF PACKAGE
3476fb
12
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