ltc4266a Linear Technology Corporation, ltc4266a Datasheet - Page 28
ltc4266a
Manufacturer Part Number
ltc4266a
Description
Quad Poe/poe+/ltpoe++ Pse Controller
Manufacturer
Linear Technology Corporation
Datasheet
1.LTC4266A.pdf
(30 pages)
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LTC4266A/LTC4266C
PACKAGE DESCRIPTION
Please refer to
28
7.00 0.10
http://www.linear.com/designtools/packaging/
NOTE:
1. DRAWING CONFORMS TO JEDEC PACKAGE
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
5.50 0.05
OUTLINE M0-220 VARIATION WHKD
4.10 0.05
PIN 1
TOP MARK
(SEE NOTE 6)
3.00 REF
5.00 0.10
APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED
3.15 ± 0.05
RECOMMENDED SOLDER PAD LAYOUT
(Reference LTC DWG # 05-08-1701 Rev C)
38-Lead Plastic QFN (5mm × 7mm)
5.15 ± 0.05
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 0.20mm ON ANY SIDE
ON THE TOP AND BOTTOM OF PACKAGE
0.50 BSC
0.25 0.05
6.10 0.05
7.50 0.05
0.75 0.05
5.5 REF
UHF Package
for the most recent package drawings.
5.50 REF
0.00 – 0.05
0.200 REF
0.50 BSC
0.25 0.05
BOTTOM VIEW—EXPOSED PAD
0.70 0.05
5.15 ± 0.10
PACKAGE
OUTLINE
3.15 ± 0.10
3.00 REF
R = 0.125
TYP
37
38
PIN 1 NOTCH
R = 0.30 TYP OR
0.35 45 CHAMFER
R = 0.10
TYP
0.40 0.10
1
2
(UH) QFN REF C 1107
4266acfa