LTC3836 Datasheet, PDF (27/28 Pages) Linear Technology – Dual 2-Phase, No RSENSETM Low VIN Synchronous Controller

LTC3836
PACKAGE DESCRIPTION
GN Package
28-Lead Plastic SSOP (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1641)
.045 ±.005
.386 – .393*
(9.804 – 9.982)
28 27 26 25 24 23 22 21 20 19 18 17 1615
.033
(0.838)
REF
.254 MIN
.150 – .165
.229 – .244
(5.817 – 6.198)
.150 – .157**
(3.810 – 3.988)
.0165 ±.0015
RECOMMENDED SOLDER PAD LAYOUT
.0250 BSC
.0075 – .0098
(0.19 – 0.25)
.015 ± .004
(0.38 ± 0.10)
× 45°
0° – 8° TYP
1 2 3 4 5 6 7 8 9 10 11 12 13 14
.0532 – .0688
(1.35 – 1.75)
.004 – .0098
(0.102 – 0.249)
.016 – .050
(0.406 – 1.270)
NOTE:
1. CONTROLLING DIMENSION: INCHES
2.
DIMENSIONS
ARE
IN
INCHES
(MILLIMETERS)
3. DRAWING NOT TO SCALE
.008 – .012
(0.203 – 0.305)
TYP
.0250
(0.635)
BSC
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
GN28 (SSOP) 0204
0.70 ±0.05
4.50
± 0.05 ^2.65
± 0.05
(2 SIDES)
3.10
± 0.05
UFD Package
28-Lead Plastic QFN (4mm × 5mm)
(Reference LTC DWG # 05-08-1712)
4.00 ± 0.10
(2 SIDES)
PIN 1
TOP MARK
(NOTE 6)
0.75 ± 0.05
R = 0.05
TYP
5.00
± 0.10
(2 SIDES)
3.65
± 0.10
(2 SIDES)
2.65 ± 0.10
(2 SIDES)
R = 0.115
TYP
27
PIN 1 NOTCH
R = 0.20 OR 0.35
× 45° CHAMFER
28
0.40
± 0.10
1
2
PACKAGE
OUTLINE
0.25 ±0.05
0.50 BSC
3.65 ± 0.05
(2 SIDES)
4.10 ± 0.05
5.50 ± 0.05
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
NOTE:
1. DRAWING PROPOSED TO BE MADE A JEDEC PACKAGE OUTLINE
MO-220 VARIATION (WXXX-X).
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
0.200
REF
0.00
– 0.05
0.25 ± 0.05
0.50 BSC
BOTTOM VIEW—EXPOSED PAD
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 THE TOP AND
BOTTOM OF PACKAGE
(UFD28) QFN 0405
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.
3836fa
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