参数资料
型号: LT3957IUHE#TRPBF
厂商: Linear Technology
文件页数: 2/28页
文件大小: 0K
描述: IC REG MULTI CONFIG ADJ 36VQFN
标准包装: 2,500
类型: 升压(升压),反相,回扫,Sepic
输出类型: 可调式
输出数: 1
输出电压: 1.6 V ~ 40 V
输入电压: 3 V ~ 40 V
PWM 型: 电流模式
频率 - 开关: 100kHz ~ 1MHz
电流 - 输出: 5A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 36-WFQFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 36-QFN-EP(6x5)
LT3957
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V IN , EN/UVLO (Note 5), SW ......................................40V
INTV CC ......................................................V IN + 0.3V, 8V
PIN CONFIGURATION
TOP VIEW
SYNC ..........................................................................8V
VC, SS .........................................................................3V
RT ............................................................................................... 1.5V
SENSE1, SGND .................. Internally Connected to GND
SENSE2..................................................................±0.3V
FBX ................................................................. –6V to 6V
Operating Junction Temperature Range
(Note 2).................................................. –40°C to 125°C
Maximum Junction Temperature .......................... 125°C
Storage Temperature Range .................. –65°C to 125°C
NC 1
NC 2
SENSE2 3
SGND 4
SENSE1 6
SW 8
SW 9
NC 10
36 35 34 33 32 31 30
SGND
37
SW
38
28 INTV CC
27 V IN
25 EN/UVLO
24 SGND
23 SGND
21 SW
20 SW
12 13 14 15 16 17
UHE PACKAGE
36-LEAD (5mm
6mm) PLASTIC QFN
T JMAX = 125°C, θ JA = 42°C/W, θ JC = 3°C/W
EXPOSED PAD (PIN 37) IS SGND, MUST BE SOLDERED TO SGND PLANE
EXPOSED PAD (PIN 38) IS SW, MUST BE SOLDERED TO SW PLANE
ORDER INFORMATION
LEAD FREE FINISH
LT3957EUHE#PBF
LT3957IUHE#PBF
TAPE AND REEL
LT3957EUHE#TRPBF
LT3957IUHE#TRPBF
PART MARKING*
3957
3957
PACKAGE DESCRIPTION
36-Lead (5mm × 6mm) Plastic QFN
36-Lead (5mm × 6mm) Plastic QFN
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges. *The temperature grade is identi?ed by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel speci?cations, go to: http://www.linear.com/tapeandreel/
3957f
2
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