LM2576T-3.3

The LM2576 series switching regulators are monolithic integrated circuits designed for use in "blck" or "buck/boost" regulator applications requiring accurate output voltage over combined variations of line,load and temperature.The LM2576T-3.3 belongs to LM2576 series.

Features of the LM2576T-3.3 are:(1)pin for pin replacement for national's LM2576 series;(2)DC-to-DC buck or buck/boost converter requiring only 4 support components;(3)fixed or adjustable voltage;(4)preset output voltage of 3.3V,5V and 12V;(5)wide output voltage range 1.23V to 35V;(6)82% typical efficiency @ 5V out;(7)wide input voltage range 4V to 40V;(8)inhibit/enable control pin;(9)industrial temperature range;(10)TO-220 and TO-263 packages.Applications of the LM2576T-3.3 are:(1)micro controller power supplies;(2)medical equipment;(3)industrial power supplies;(4)instrumentation power supplies.

The absolute maximum ratings of the LM2576T-3.3 can be summarized as:(1):the parameter is input voltage,the symbol is Vin,the maximum is 45,the unit is V;(2):the parameter is on/off pin input voltage,the symbol is VON/OFF,the maximum is -0.3VON/OFFVIN,the unit is V;(3):the parameter is output voltage to common,the maximum is -1,the unit is V;(4):the parameter is power dissipation,the symbol is PD,the maximum is internally limited,the unit is W;(5):the parameter is thermal resistance junction to ambient,the symbol is JA,the maximum is 55,the unit is /W;(6):the parameter is thermal resistance junction to case,the symbol is JC,the maximum is 2.0,the unit is /W;(7):the parameter is operating junction temperature range,the symbol is TJ,the maximum is -40 to +125,the unit is ;(8):the parameter is storage temperature range,the symbol is Tstg,the maximum is -65 to +150,the unit is ;(9):the parameter is lead temperature (soldering 10 sec),the symbol is TLEAD,the maximum is 300,the unit is ;(10):the parameter is ESD rating(human body model),the symbol is VESD,the maximum is 2,the unit is kV.