UK Package 44-Lead Plastic QFN (7mm × 7mm) (Reference LTC DWG # 05-08-1763 Rev Ø) 0.70 ±0.05 5.15 ± 0.05 5.00 REF 6.10 ±0.05 7.50 ±0.05 (4 SIDES) 5.15 ± 0.05 PACKAGE OUTLINE 0.25 ±0.05 0.50 BSC RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED 7.00 ± 0.10 (4 SIDES) 0.75 ± 0.05 R = 0.10 TYP R = 0.125 TYP 43 44 0.40 ± 0.10 PIN 1 TOP MARK (SEE NOTE 6) 1 PIN 1 CHAMFER C = 0.35 5.00 REF (4-SIDES) 2 5.15 ± 0.10 5.15 ± 0.10 (UK44) QFN 1007 REV Ø 0.200 REF 0.00 – 0.05 NOTE: 1. DRAWING 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 MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.20mm 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 0.25 ± 0.05 0.50 BSC BOTTOM VIEW—EXPOSED PAD