LT3433 Datasheet PDF

●DESCRIPTION

●The LT® 3433 is a 200kHz fixed-frequency current mode switching regulator that provides both step-up and step down 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.

●FEATURES

●Automatic Step-Up and Step-Down Conversion

●Uses a Single Inductor

●Wide 4V to 60V Input Voltage Range

●VOUTfrom 3.3V to 20V

●Dual Internal 500mA Switches

●100µA No-Load Quiescent Current

●Low Current Shutdown

●±1% Output Voltage Accuracy

●200kHz Operating Frequency

●Boosted Supply Pin to Saturate High Side Switch

●Frequency Foldback Protection

●Current Limit Foldback Protection

●Current Limit Unaffected by Duty Cycle

●16-lead Thermally Enhanced TSSOP Package

●APPLICATIONS

●12V Automotive Systems

●Wall Adapter Powered Systems

●Battery Power Voltage Buffering