LT3433EFE

Conv DC-DC 4V to 60V Non-Inv/Inv/Step Up/Step Down Single-Out 3.3V to 20V 0.9A Automotive 16Pin TSSOP EP

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