參數(shù)資料
型號: NCV4299
廠商: ON SEMICONDUCTOR
英文描述: 5.0V Low Drop Fixed Voltage Regulator(5.0V,低壓差固定電壓穩(wěn)壓器)
中文描述: 固定5.0V低壓差穩(wěn)壓器(5.0V,低壓差固定電壓穩(wěn)壓器)
文件頁數(shù): 18/23頁
文件大?。?/td> 197K
代理商: NCV4299
NCV4299
http://onsemi.com
18
Heatsinks
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 R
JA
:
RJA
RJC
RCS
RSA
(eq. 7)
where:
R
JC
= the junction-to-case thermal resistance,
R
CS
= the case-to-heatsink thermal resistance, and
R
SA
= the heatsink-to-ambient thermal resistance.
R
JC
appears in the package section of the data sheet. Like
R
JA
, it too is a function of package type. R
CS
and R
SA
are
functions of the package type, heatsink and the interface
between them. These values appear in heatsink data sheets
of heatsink manufacturers. Thermal, mounting, and
heatsinking are discussed in the ON Semiconductor
application
note
AN1040/D,
ON Semiconductor website.
available
on
the
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NCV4299AD250R2G 功能描述:低壓差穩(wěn)壓器 - LDO 150 MA LOW IQ LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓(最大值):307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
NCV4299D1 功能描述:低壓差穩(wěn)壓器 - LDO 5V 400mA LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓(最大值):307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
NCV4299D1G 功能描述:低壓差穩(wěn)壓器 - LDO LDO REG RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓(最大值):307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
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