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The BD9001F-E2 is a type of silicon monolithic intergrated circuit,flexible step-down switching regulator.features of the BD9001F-E2 are:(1)wide input ranges from 7V to 8V;(2)high precision(reference voltage) is ±20%;(3)intergrated 2AP-ch power MOS FET;(4)adjusted frequency is 50KHz to 300KHz.
The absolute maximum ratings and electrical characeristics the BD9001F-E2 can be summarized as:(1):supply volta ge is 50V;(2):SW pin voltage is VIN V;(3):output SW current is 2A;(4):EN pin voltage is VIN V; (5):RT,FB,INV pin volta ge is 7V;(6):power dissipation is 0.69W;(7):operating temperature ranges from-40 to95 ;(8):storage temperatur e ranges from-55to 150 ;(9):maximum junction temperature is 150.Electrical characeristics:(1):stand-by current is 4uA typ and 10uA max when VEN is 0V and Ta is 25;(2):quiescent current is 3mA tyo and 4.2mA max when IO is 0A;(3):switch on resistance is 0.53 and 0.9 when ISW is 50mA;(4):reference voltage is 0.98V min,1.00V typ and 1.02V max when VFB is VIN and Ta is 25;(5):maximum FB voltage is 2.4V min and 2.5V typ when VINV is 0.5V,maxi mum FB voltage is 0.05V typ and 0.1V max when VINV is 1.5V;(6):FB source current is 70uA min,120uA typ and 170u A max when VFB is 1.5V,VINV is 0.5V;(7):threshold voltage is 0.8V min,1.7V typ and 2.6V max.etc.