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參數(shù)資料
| 型號(hào)： | MIC5357-3.3/1.8YMME |
| 廠商： | MICREL INC |
| 元件分類： | 固定正電壓多路輸出LDO穩(wěn)壓器 |
| 英文描述： | FIXED POSITIVE LDO REGULATOR, PDSO8 |
| 封裝： | MSOP-8 |
| 文件頁數(shù)： | 10/11頁 |
| 文件大?。?/td> | 464K |
| 代理商： | MIC5357-3.3/1.8YMME |
Micrel, Inc.
MIC5357
January 2011
8
M9999-011311
Thermal Resistance
Substituting PD for PD(max) and solving for the ambient
operating temperature will give the maximum operating
conditions for the regulator circuit. The junction to
ambient thermal resistance for the minimum footprint is
64.4°C/W.
The maximum power dissipation must not be exceeded
for proper operation.
For example, when operating the MIC5357 at an input
voltage of 3.6V and 500mA on VOUT1 and 500mA on
VOUT2, the maximum ambient operating temperature TA
can be determined as follows:
0.55W = (125°C – TA)/(64.4°C/W)
TA = 89.6°C
Therefore, a 3.3V/2.8V application with 500mA and
500mA output currents can accept an ambient operating
temperature of 89.6°C in a small 8 Pin ePAD MSOP
package. For a full discussion of heat sinking and
thermal effects on voltage regulators, refer to the
“Regulator Thermals” section of Micrel’s Designing with
Low-Dropout
Voltage
Regulators
handbook.
This
information can be found on Micrel's website at:
http://www.micrel.com/_PDF/other/LDOBk_ds.pdf
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC5357-GFYMME | 功能描述:低壓差穩(wěn)壓器 - LDO High Performance Dual 500mA ULDO in 8-ld MSOP ePAD 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: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MIC5357-GFYMME TR | 功能描述:低壓差穩(wěn)壓器 - LDO High Performance Dual 500mA ULDO in 8-ld MSOP ePAD 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: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MIC5357-MGYMME | 功能描述:低壓差穩(wěn)壓器 - LDO High Performance Dual 500mA ULDO in 8-ld MSOP ePAD 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: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MIC5357-MGYMME TR | 功能描述:低壓差穩(wěn)壓器 - LDO High Performance Dual 500mA ULDO in 8-ld MSOP ePAD 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: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MIC5357-SGYMME | 功能描述:低壓差穩(wěn)壓器 - LDO High Performance Dual 500mA ULDO in 8-ld MSOP ePAD 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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