LTC3879 Linear Technology Corporation, LTC3879 Datasheet - Page 27

• Manufacturer Part Number: LTC3879
• Description: Wide Operating Range No RSENSE Step-Down Controller
• Manufacturer: Linear Technology Corporation

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PACKAGE DESCRIPTION
3.50 0.05
2.10 0.05
1.65 0.05
(4 SIDES)
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
NOTE:
1. DRAWING CONFORMS TO JEDEC PACKAGE OUTLINE MO-220 VARIATION (WEED-4)
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
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
ON THE 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.
PIN 1
TOP MARK
(NOTE 6)
3.00 0.10
(4 SIDES)
(Reference LTC DWG # 05-08-1700 Rev A)
16-Lead Plastic QFN (3mm × 3mm)
0.50 BSC
0.25 0.05
Exposed Pad Variation AA
0.70 0.05
PACKAGE OUTLINE
0.75 0.05
UD Package
1.65 0.10
(4-SIDES)
0.200 REF
0.00 – 0.05
BOTTOM VIEW—EXPOSED PAD
R = 0.115
TYP
15 16
0.50 BSC
0.25 0.05
1
2
(UD16 VAR A) QFN 1207 REV A
0.40 0.10
PIN 1 NOTCH R = 0.20 TYP
OR 0.25 45 CHAMFER
LTC3879
27
3879f