ltc3445euf-pbf Linear Technology Corporation, ltc3445euf-pbf Datasheet - Page 23

• Manufacturer Part Number: ltc3445euf-pbf
• Description: I2c Controllable Buck Regulator With Two Ldos In A 4mm ? 4mm Qfn
• Manufacturer: Linear Technology Corporation

PACKAGE DESCRIPTIO
4.50 ± 0.05
3.10 ± 0.05
2.45 ± 0.05
(4 SIDES)
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
NOTE:
1. DRAWING PROPOSED TO BE MADE A JEDEC PACKAGE OUTLINE MO-220 VARIATION (WGGD-X)—TO BE APPROVED
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, IF PRESENT
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 represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
PIN 1
TOP MARK
(NOTE 6)
4.00 ± 0.10
(4 SIDES)
U
24-Lead Plastic QFN (4mm × 4mm)
(Reference LTC DWG # 05-08-1697)
0.50 BSC
0.25 ±0.05
0.70 ±0.05
UF Package
PACKAGE OUTLINE
0.75 ± 0.05
0.200 REF
0.00 – 0.05
2.45 ± 0.10
(4-SIDES)
R = 0.115
BOTTOM VIEW—EXPOSED PAD
TYP
23
24
(4 SIDES)
0.23 TYP
LTC3445
0.50 BSC
0.25 ± 0.05
1
2
(UF24) QFN 1103
0.38 ± 0.10
23
3445fa