参数资料
型号: SC1485ITSTRT
厂商: Semtech
文件页数: 15/27页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM 28-TSSOP
标准包装: 1
PWM 型: 控制器
输出数: 2
占空比: 90%
电源电压: 1.8 V ~ 25 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 28-TSSOP(0.173",4.40mm 宽)
包装: 标准包装
产品目录页面: 1358 (CN2011-ZH PDF)
其它名称: SC1485ITSDKR
NOT RECOMMENDED FOR NEW DESIGN
POWER MANAGEMENT
gives us:
P D = 2 ? ( 5 ? 1100 ? 10 ? 6 + 5 ? 150 ? 10 ? 6 )
+ 5 ? 60 ? 10 ? 9 ? 250 ? 10 3 + 13 ? 1 ? 10 ? 3 ? 0 . 1875
+ 5 ? 60 ? 10 ? 9 ? 300 ? 10 3 + 13 ? 1 ? 10 ? 3 ? 0 . 15
= 0 . 182 W
and:
SC1485
T J = 85 + 0 . 182 ? 84 = 100
° C
As can be seen, the heating effects due to internal power
dissipation are practically negligible, thus requiring no
special consideration thermally during layout.
? 2005 Semtech Corp.
15
www.semtech.com
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