lt3681 Linear Technology Corporation, lt3681 Datasheet - Page 23

• Manufacturer Part Number: lt3681
• Description: 36v, 2a, 2.8mhz Step-down Switching Regulator With Integrated Power Schottky Diode
• Manufacturer: Linear Technology Corporation

PACKAGE DESCRIPTION
3.50 ±0.05
2.10 ±0.05
(SEE NOTE 6)
TOP MARK
1.65 ± 0.05
APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
PIN 1
0.200 REF
NOTE:
1. DRAWING PROPOSED IS NOT A JEDEC PACKAGE OUTLINE
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
TOP AND BOTTOM OF PACKAGE
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.
1.78 ±0.05
0.10 TYP
0.51 TYP
4.00 ±0.10
(2 SIDES)
3.00 REF
14-Lead Plastic DFN, Multichip (4mm × 3mm)
(Reference LTC DWG # 05-08-1731 Rev 0)
±0.05
1.07
0.50 BSC
0.25 ± 0.05
DE14MA Package
0.75 ±0.05
3.00 ±0.10
(2 SIDES)
0.70 ±0.05
1.65 ± 0.05
PACKAGE
OUTLINE
0.00 – 0.05
R = 0.05
0.40 ± 0.10
1.65 ± 0.10
TYP
R = 0.115
BOTTOM VIEW—EXPOSED PAD
7
8
±0.10
1.07
TYP
3.00 REF
1.78 ±0.10
0.51 TYP
0.10 TYP
0.50 BSC
0.25 ± 0.05
14
1
(DE14MA) DFN 1106 REV Ø
1.65 ± 0.10
PIN 1 NOTCH
R = 0.20 OR
0.25 × 45°
CHAMFER
LT3681
23
3681f