lt3645 Linear Technology Corporation, lt3645 Datasheet - Page 22

• Manufacturer Part Number: lt3645
• Description: 36v 500ma Step-down Regulator And 200ma Ldo
• Manufacturer: Linear Technology Corporation

LT3645
PACKAGE DESCRIPTION
22
(.0165 .0015)
0.42 0.038
TYP
GAUGE PLANE
NOTE:
1. DIMENSIONS IN MILLIMETER/(INCH)
2. DRAWING NOT TO SCALE
3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.
4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.
5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX
(.007)
0.18
RECOMMENDED SOLDER PAD LAYOUT
MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
(.206)
5.23
MIN
2.845 0.102
(.112 .004)
(.010)
0.254
DETAIL “A”
DETAIL “A”
1.651 0.102
(.065 .004)
(.0256)
0.65
BSC
0 – 6 TYP
12-Lead Plastic MSOP , Exposed Die Pad
(Reference LTC DWG # 05-08-1666 Rev D)
(.021 .006)
0.53 0.152
0.889 0.127
(.035 .005)
(.126 – .136)
3.20 – 3.45
SEATING
PLANE
MSE Package
(.009 – .015)
0.22 – 0.38
(.193 .006)
4.90 0.152
TYP
(.043)
MAX
1.10
EXPOSED PAD OPTION
(.0256)
1
0.650
BSC
12
BOTTOM VIEW OF
12 11 10 9 8 7
1 2 3 4 5 6
2.845 0.102
4.039 0.102
(.112 .004)
(.159 .004)
(NOTE 3)
7
6
DETAIL “B”
(.118 .004)
3.00 0.102
(NOTE 4)
0.406 0.076
(.016 .003)
MSOP (MSE12) 0910 REV D
(.034)
0.86
REF
0.1016 0.0508
(.004 .002)
REF
NO MEASUREMENT PURPOSE
THE LEADFRAME FEATURE.
CORNER TAIL IS PART OF
FOR REFERENCE ONLY
DETAIL “B”
0.12 REF
0.35
REF
3645f