參數(shù)資料
型號(hào): SI9185DMP-AD-T1
廠商: Vishay Intertechnology,Inc.
元件分類(lèi): 基準(zhǔn)電壓源/電流源
英文描述: Micropower 500-mA CMOS LDO Regulator
中文描述: 微500毫安的CMOS LDO穩(wěn)壓器
文件頁(yè)數(shù): 12/12頁(yè)
文件大?。?/td> 138K
代理商: SI9185DMP-AD-T1
Si9185
Vishay Siliconix
www.vishay.com
12
Document Number: 71765
S-20641
Rev. B, 06-May-02
PCB Footprint and Layout Considerations
The Si9185 comes in the MLP33 PowerPAK package with an
exposed pad on the bottom to provide a low thermal
impedance path into the PC board. When the PC board layout
is designed, a copper plane, referred to as spreading copper,
is recommended to be placed under the package to which the
exposed pad is soldered. This spreading copper is the path for
the heat to move away from the package into the PC board.
With the Si9185 mounted on a four layer board measuring 2
2
, a spreading copper area of 0.25 square inches will yield an
R
ja
of 50 C/W. This allows for power dissipation in excess of
1 watt in an 80 C ambient environment.
Figure 7.
MLP33 PowerPAK Pad Pattern
0.325
0.013
2.245
0.088
1.426
0.056
2.852
0.112
0.396
0.016
0.650
0.026
0.906
0.026
1.425
0.056
mm
inches
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SI9185DMP-AD-T1-E3 功能描述:低壓差穩(wěn)壓器 - LDO Reg LDO Lin Adj Pos 1.215 to 5V 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(dòng)電壓(最大值):307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
SI91860 制造商:VISHAY 制造商全稱(chēng):Vishay Siliconix 功能描述:400-mA Smart Regulator for Network Interface Card
SI91860DB 功能描述:低壓差穩(wěn)壓器 - LDO SI91860 Demo Board 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(dòng)電壓(最大值):307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
SI91860DY 功能描述:低壓差穩(wěn)壓器 - LDO 400mA 3.3V 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(dòng)電壓(最大值):307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
SI91860DY-E3 功能描述:低壓差穩(wěn)壓器 - LDO 400mA 3.3V Smart LDO w/Bypass 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(dòng)電壓(最大值):307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20