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CS8101 bảng dữ liệu(PDF) 6 Page - Cherry Semiconductor Corporation

tên linh kiện CS8101
Giải thích chi tiết về linh kiện  Micropower 5V, 100mA Low Dropout Linear Regulator with RESET and ENABLE
PDF  8 Pages
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nhà sản xuất  CHERRY [Cherry Semiconductor Corporation]
Trang chủ  http://www.cherrycorp.com/
Logo CHERRY - Cherry Semiconductor Corporation

CS8101 bảng dữ liệu(HTML) 6 Page - Cherry Semiconductor Corporation

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Application Notes: continued
6
In some cases, none of the packages will be sufficient to
dissipate the heat generated by the IC, and an external
heatsink will be required.
Figure 6: Single output regulator with key performance parameters
labeled.
A heatsink effectively increases the surface area of the
package to improve the flow of heat away from the IC and
into the surrounding air.
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
to determine the value of RQJA:
RQJA = RQJC + RQCS + RQSA
(3)
where:
RQJC = the junctionÐtoÐcase thermal resistance,
RQCS = the caseÐtoÐheatsink thermal resistance, and
RQSA = the heatsinkÐtoÐambient thermal resistance.
RQJC appears in the package section of the data sheet. Like
RQJA, it too is a function of package type. RQCS and RQSA
are functions of the package type, heatsink and the inter-
face between them. These values appear in heatsink data
sheets of heatsink manufacturers.
Heatsinks
VIN
Smart
Regulator
VOUT
IOUT
IIN
IQ
Control
Features
}



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