厂商：Freescale
类别：16位单片机
厂商：Atmel
类别：8051单片机
厂商：Linear
类别：开关稳压器
厂商：
类别：PhotoMOS(MOSFET输出光电耦合器)
类别：ATmega系列单片机
厂商：Renesas
类别：H8系列单片机
我要询价我要收藏
特点Automatic Step-Up and Step-Down ConversionUses a Single InductorWide 4V to 60V Input Voltage Range V OUT from 3.3V to 20V Dual Internal 500mA Switches100μA No-Load Quiescent CurrentLow Current Shutdown±1% Output Voltage Accuracy200kHz Operating FrequencyBoosted Supply Pin to Saturate High Side SwitchFrequency Foldback ProtectionCurrent Limit Foldback ProtectionCurrent Limit Unaffected by Duty Cycle16-lead Thermally Enhanced TSSOP Package典型应用典型应用描述The LT?3433 is a 200kHz fixed-frequency current mode switching regulator that provides both step-up and stepdown regulation using a single inductor. The IC operates over a 4V to 60V input voltage range making it suitable for use in various wide input voltage range applications such as automotive electronics that must withstand both load dump and cold crank conditions.Internal control circuitry monitors system conditions and converts from single switch buck operation to dual switch bridged operation when required, seamlessly changing between step-down and step-up voltage conversion.Optional Burst Mode? operation reduces no-load quiescent current to 100μA and maintains high efficiencies with light loads.Current limit foldback and frequency foldback help prevent inductor current runaway during start-up. Programmable soft-start helps prevent output overshoot at start-up.The LT3433 is available in a 16-lead thermally enhanced TSSOP package.