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CS8122YTHA5 参数 Datasheet PDF下载

CS8122YTHA5图片预览
型号: CS8122YTHA5
PDF下载: 下载PDF文件 查看货源
内容描述: 2%的5V , 750毫安低压差线性稳压器,具有延时复归 [2% 5V, 750mA Low Dropout Linear Regulator with Delayed RESET]
分类和应用: 稳压器
文件页数/大小: 8 页 / 179 K
品牌: CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
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Application Notes: continued  
where:  
Heat Sinks  
R
R
R
QJC = the junctionÐtoÐcase thermal resistance,  
A heat sink effectively increases the surface area of the  
package to improve the flow of heat away from the IC and  
into the surrounding air.  
QCS = the caseÐtoÐheatsink thermal resistance, and  
QSA = the heatsinkÐtoÐambient thermal resistance.  
R
R
QJC appears in the package section of the data sheet. Like  
QJA, it too is a function of package type. RQCS and RQSA  
Each material in the heat flow path between the IC and the  
outside environment will have a thermal resistance. Like  
series electrical resistances, these resistances are summed  
are functions of the package type, heatsink and the inter-  
face between them. These values appear in heat sink data  
sheets of heat sink manufacturers.  
to determine the value of RQJA  
:
RQJA = RQJC + RQCS + RQSA  
(3)  
7