参数资料
型号: LTC3109IUF#PBF
厂商: LINEAR TECHNOLOGY CORP
元件分类: 稳压器
英文描述: 0.026 A SWITCHING REGULATOR, PQCC20
封装: 4 X 4 MM, LEAD FREE, PLASTIC, MO-220WGGD-1, QFN-20
文件页数: 15/24页
文件大小: 329K
代理商: LTC3109IUF#PBF
LTC3109
3109f
package DescripTion
UF Package
20-Lead Plastic QFN (4mm
× 4mm)
(Reference LTC DWG # 05-08-1710 Rev A)
4.00 0.10
NOTE:
1. DRAWING IS PROPOSED TO BE MADE A JEDEC PACKAGE OUTLINE MO-220
VARIATION (WGGD-1)—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
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm 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
PIN 1
TOP MARK
(NOTE 6)
0.40 0.10
20
19
1
2
BOTTOM VIEW—EXPOSED PAD
2.00 REF
2.45 0.10
0.75 0.05
R = 0.115
TYP
R = 0.05
TYP
0.25 0.05
0.50 BSC
0.200 REF
0.00 – 0.05
(UF20) QFN 01-07 REV A
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED
0.70 0.05
0.25 0.05
0.50 BSC
2.00 REF
2.45 0.05
3.10 0.05
4.50 0.05
PACKAGE OUTLINE
PIN 1 NOTCH
R = 0.20 TYP
OR 0.35 45
CHAMFER
2.45 0.10
2.45 0.05
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