参数资料
型号: LTC3727EG-1
厂商: Linear Technology
文件页数: 31/32页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 28-SSOP
标准包装: 47
系列: PolyPhase®
PWM 型: 电流模式
输出数: 2
频率 - 最大: 580kHz
占空比: 99%
电源电压: 4 V ~ 36 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 28-SSOP(0.209",5.30mm 宽)
包装: 管件
LTC3727/LTC3727-1
PACKAGE DESCRIPTIO
G Package
28-Lead Plastic SSOP (5.3mm)
(Reference LTC DWG # 05-08-1640)
1.25 ± 0.12
7.8 – 8.2
5.3 – 5.7
9.90 – 10.50*
5.00 – 5.60**
(.197 – .221)
0.42 ± 0.03 0.65 BSC
RECOMMENDED SOLDER PAD LAYOUT
2.0
(.079)
MAX
(.390 – .413)
28 27 26 25 24 23 22 21 20 19 18 17 16 15
0 ° – 8 °
7.40 – 8.20
0.09 – 0.25         0.55 – 0.95
(.0035 – .010) (.022 – .037)
NOTE:
1. CONTROLLING DIMENSION: MILLIMETERS
MILLIMETERS
2. DIMENSIONS ARE IN
(INCHES)
0.65
(.0256)
BSC
0.22 – 0.38
(.009 – .015)
TYP
0.05
(.002)
MIN
G28 SSOP 0204
1 2 3 4 5 6 7 8 9 10 11 12 13 14
(.291 – .323)
3. DRAWING NOT TO SCALE
* DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED .152mm (.006") PER SIDE
** DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED .254mm (.010") PER SIDE
UH Package
32-Lead Plastic QFN (5mm × 5mm)
(Reference LTC DWG # 05-08-1693 Rev D)
0.70 ± 0.05
NOTE:
1. DRAWING PROPOSED TO BE A JEDEC PACKAGE OUTLINE
5.50 ± 0.05
4.10 ± 0.05
3.50 REF
(4 SIDES)
3.45 ± 0.05
3.45 ± 0.05
M0-220 VARIATION WHHD-(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
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
PACKAGE OUTLINE
0.25 ± 0.05
0.50 BSC
RECOMMENDED SOLDER PAD LAYOUT
APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED
BOTTOM VIEW—EXPOSED PAD
5.00 ± 0.10
(4 SIDES)
0.75 ± 0.05
R = 0.05
TYP
0.00 – 0.05
R = 0.115
TYP
31 32
PIN 1 NOTCH R = 0.30 TYP
OR 0.35 × 45 ° CHAMFER
PIN 1
TOP MARK
(NOTE 6)
3.50 REF
3.45 ± 0.10
0.40 ± 0.10
1
2
(4-SIDES)
3.45 ± 0.10
(UH32) QFN 0406 REV D
0.200 REF
0.25 ± 0.05
0.50 BSC
3727fc
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.
31
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