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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MIC5501 датащи(PDF) 10 Page - Microchip Technology |
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MIC5501 датащи(HTML) 10 Page - Microchip Technology |
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10 / 15 page  Micrel, Inc. MIC5501/2/3/4 April 20, 2015 10 Revision 2.3 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 250°C/W. The maximum power dissipation must not be exceeded for proper operation. For example, when operating the MIC5501-MYMT at an input voltage of 3.6V and 300mA load with a minimum footprint layout, the maximum ambient operating temperature TA can be determined as follows: 0.240W = (125°C – TA)/(250°C/W) TA = 65°C Therefore, the maximum ambient operating temperature allowed in a 1mm × 1mm DFN package is 65°C. 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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