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参数资料
| 型号： | LTC4558EUD |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC20 |
| 封装： | 3 X 3 MM, 0.75 MM HEIGHT, PLASTIC, QFN-20 |
| 文件页数： | 3/12页 |
| 文件大小： | 146K |
| 代理商： | LTC4558EUD |
LTC4558
11
4558fa
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.
PACKAGE DESCRIPTION
3.00
± 0.10
(4 SIDES)
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED
1.65
± 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 0.15mm 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
BOTTOM VIEW—EXPOSED PAD
1.65
± 0.10
(4-SIDES)
0.75
± 0.05
R = 0.115
TYP
R = 0.05
TYP
0.20
± 0.05
1
PIN 1 NOTCH
R = 0.20 TYP
OR 0.25
× 45°
CHAMFER
19 20
2
0.40 BSC
0.200 REF
2.10
± 0.05
3.50
± 0.05
(4 SIDES)
0.70
±0.05
0.00 – 0.05
(UD20) QFN 0306 REV A
0.20
±0.05
0.40 BSC
PACKAGE
OUTLINE
UD Package
20-Lead Plastic QFN (3mm × 3mm)
(Reference LTC DWG # 05-08-1720 Rev A)
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