LTC3631 Datasheet, PDF (20/22 Pages) Linear Technology – High Effi ciency, High Voltage 100mA Synchronous Step-Down Converter

LTC3631
PACKAGE DESCRIPTION
MS8E Package
8-Lead Plastic MSOP, Exposed Die Pad
(Reference LTC DWG # 05-08-1662 Rev E)
BOTTOM VIEW OF
EXPOSED PAD OPTION
2.06 p 0.102
1
(.081 p .004)
0.29
2.794 p 0.102
(.110 p .004)
0.889 p 0.127
(.035 p .005)
1.83 p 0.102
REF
(.072 p .004)
5.23
(.206)
MIN
2.083 p 0.102 3.20 – 3.45
(.082 p .004) (.126 – .136)
0.42 p 0.038
(.0165 p .0015)
TYP
0.65
(.0256)
BSC
RECOMMENDED SOLDER PAD LAYOUT
3.00 p 0.102
(.118 p .004)
(NOTE 3)
8
8 7 65
0.05 REF
DETAIL “B”
CORNER TAIL IS PART OF
DETAIL “B” THE LEADFRAME FEATURE.
FOR REFERENCE ONLY
NO MEASUREMENT PURPOSE
0.52
(.0205)
REF
0.254
(.010)
DETAIL “A”
0o – 6o TYP
4.90 p 0.152
(.193 p .006)
3.00 p 0.102
(.118 p .004)
(NOTE 4)
GAUGE PLANE
0.18
(.007)
0.53 p 0.152
(.021 p .006)
DETAIL “A”
1 234
1.10
(.043)
MAX
SEATING
PLANE _{0.22 – 0.38}
NOTE:
1. DIMENSIONS IN MILLIMETER/(INCH)
(.009 – .015)
TYP
0.65
(.0256)
BSC
2. DRAWING NOT TO SCALE
3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.
MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.
INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX
0.86
(.034)
REF
0.1016 p 0.0508
(.004 p .002)
MSOP (MS8E) 0908 REV E
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