PCB表面黏着电源组件的散热设计

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°P = 100% TA = 50 J ¤W-±¨t-n¨D 750mA MIC2937A -5.0BU -A¨° °G VOUT= 5V 2% ( La±p ) TJ MAX= 125 J ±TO-263A?JC = 3J /W ) ?CS 0J /W (±k±bqO¤W ì¨B-p VOUT(MIN) = 5V 5 2% = 4.9V PD = (VIN(MAX) - VOUT (MIN) ) I OUT+ (VIN(MAX) I) = [9V- 4.9V] 7 00mA + (9V 15mA) = 3W פW¤¤j -A? T = TJ(MAX) - TA
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