ASEMI电源芯片AMS1117-3.3AMS1117-5.0使用手册.docx
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1、AdvancedAMS1117MonolithicSystems1A LOW DROPOUT VOLTAGE REGULATORRoHs CompliantAPPLICATIONS High Efficiency Linear Regulators Post Regulators for Switching Supplies 5V to 3.3V Linear Regulator Battery Chargers Active SCSI Terminators Power Management for Notebook Battery Powered InstrumentationFEATUR
2、ES Three Terminal Adjustable or Fixed Voltages*L5V, L8V, 25V, 285V, 33V and 5.0V Output Current of 1A Operates Down to IV Dropout Line Regulation: 0.2% Max. Load Regulation: 0.4% Max. SOT-223, TO-252 and SO-8 package availableGENERAL DESCRIPTIONThe AMS1 1 1 7 series of adjustable and fixed voltage r
3、egulators are designed to provide up tol A output current and to operatedown to 1 V input-to-output differential. The dropout voltage of the device is guaranteed maximum 1.3 V, decreasing at lowerload currents.On-chip trimming adjusts the reference voltage to 1.5%. Current limit is set to minimize t
4、he stress under overload conditionson both the regulator and power source circuitry.The AMS1 1 I 7 devices are pin compatible with other three- terminal SCSI regulators and are offered in the low profile surfacemount SOT-223 package, in the 8L SOIC package and in the TO-252 (DPAK) plastic package.OR
5、DERING INFORMATION:PACKAGE TYPEOPERATING JUNCTIONTEMPERATURE RANGETO-252SOT-2238L SOICAMS1 1 17CDAMS1 117AMS1 1 17CS-40 to 125o CAMS1I17CD- 1.5AMS1117- 1.5AMS1117CS- 1.5-40 to 125o CAMS1 1 17CD- 1.8AMS1H7- 1.8AMS1117CS- 1.8-40 to 125o CAMS1117CD-2.5AMS1117-2.5AMS1117CS-2.5-40 to 125o CAMS1117CD-2.85
6、AMS1117-2.85AMS1117CS-2.85-40 to 125o CAMS1117CD-3.3AMS1117-3.3AMS1117CS-3.3-40 to 125o CAMSI 1 17CD-5.0AMS1 1 17-5.0AMS1 1 17CS-5.0-40 to I25o C* For additional available fixed voltages contact factory.8L SOIC Top ViewPIN CONNECTIONS3 PIN FIXED/ADJUSTABLEVERSIONSOT-223 Top ViewTO-252 FRONT VIEW1 -
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