LTC3499_15 Datasheet, PDF (14/16 Pages) Linear Technology – 750mA Synchronous Step-Up DC/DC Converters with Reverse-Battery Protection

LTC3499/LTC3499B
PACKAGE DESCRIPTION
DD Package
8-Lead Plastic DFN (3mm × 3mm)
(Reference LTC DWG # 05-08-1698 Rev C)
0.70 ±0.05
R = 0.125
TYP
5
0.40 ± 0.10
8
3.5 ±0.05
1.65 ±0.05
2.10 ±0.05 (2 SIDES)
PACKAGE
OUTLINE
PIN 1
TOP MARK
(NOTE 6)
0.25 ± 0.05
0.50
BSC
2.38 ±0.05
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED
0.200 REF
3.00 ±0.10 1.65 ± 0.10
(4 SIDES) (2 SIDES)
0.75 ±0.05
0.00 – 0.05
4
0.25 ± 0.05
(DD8) DFN 0509 REV C
1
0.50 BSC
2.38 ±0.10
BOTTOM VIEW—EXPOSED PAD
NOTE:
1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WEED-1)
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 0.15mm ON ANY SIDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION
ON TOP AND BOTTOM OF PACKAGE
MS8 Package
8-Lead Plastic MSOP
(Reference LTC DWG # 05-08-1660 Rev F)
3.00 ± 0.102
(.118 ± .004)
(NOTE 3)
8 7 65
0.52
(.0205)
REF
0.889 ± 0.127
(.035 ± .005)
0.254
(.010)
DETAIL “A”
0° – 6° TYP
4.90 ± 0.152
(.193 ± .006)
5.23
(.206)
MIN
3.20 – 3.45
(.126 – .136)
GAUGE PLANE
0.42 ± 0.038
(.0165 ± .0015)
TYP
0.65
(.0256)
BSC
RECOMMENDED SOLDER PAD LAYOUT
0.18
(.007)
0.53 ± 0.152
(.021 ± .006)
DETAIL “A”
SEATING
PLANE
NOTE:
1. DIMENSIONS IN MILLIMETER/(INCH)
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
1 234
1.10
(.043)
MAX
0.22 – 0.38
(.009 – .015)
TYP
0.65
(.0256)
BSC
3.00 ± 0.102
(.118 ± .004)
(NOTE 4)
0.86
(.034)
REF
0.1016 ± 0.0508
(.004 ± .002)
MSOP (MS8) 0307 REV F
3499fc
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