LTC3646-1 Datasheet, PDF (27/28 Pages) Linear Technology – 40V, 1A Synchronous Step-Down Converter 1A Guaranteed Output Current

LTC3646/LTC3646-1
Package Description
MSE Package
16¹-L^6(Re^-Lea^efd^earP^ednl^Pca^els^at^LMsi^Tc^tCSicM^DEMWSPO^SGaOPc^{#Pk,,0aE5Egx-xe0}p^p8o^o-s^1se^6e6d^d7D^DRii^eee^vPP^Eaa^{) d}d
(Reference LTC DWG # 05-08-1667 Rev E)
BOTTOM VIEW OF
EXPOSED PAD OPTION
2.845 ±0.102
2.845 ±0.102
(.112 ±.004)
0.889 ±0.127
(.112 ±.004)
(.035 ±.005)
1
8
0.35
REF
5.23
(.206)
MIN
1.651 ±0.102 3.20 – 3.45
(.065 ±.004) (.126 – .136)
0.305 ±0.038
(.0120 ±.0015)
TYP
0.50
(.0197)
BSC
RECOMMENDED SOLDER PAD LAYOUT
0.254
(.010)
GAUGE PLANE
DETAIL “A”
0° – 6° TYP
4.90 ±0.152
(.193 ±.006)
1.651 ±0.102
(.065 ±.004)
0.12 REF
DETAIL “B”
CORNER TAIL IS PART OF
DETAIL “B” THE LEADFRAME FEATURE.
16
9
4.039 ±0.102
FOR REFERENCE ONLY
NO MEASUREMENT PURPOSE
(.159 ±.004)
(NOTE 3)
0.280 ±0.076
16151413121110 9 (.011 ±.003)
REF
3.00 ±0.102
(.118 ±.004)
(NOTE 4)
0.18
(.007)
0.53 ±0.152
(.021 ±.006)
DETAIL “A”
1.10
(.043)
MAX
12345678
0.86
(.034)
REF
SEATING
PLANE _{0.17 – 0.27}
0.1016 ±0.0508
NOTE:
1. DIMENSIONS IN MILLIMETER/(INCH)
2. DRAWING NOT TO SCALE
(.007 – .011)
TYP
0.50
(.0197)
BSC
(.004 ±.002)
MSOP (MSE16) 0911 REV E
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
6. EXPOSED PAD DIMENSION DOES INCLUDE MOLD FLASH. MOLD FLASH ON E-PAD SHALL
NOT EXCEED 0.254mm (.010") PER SIDE.
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
36461f
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