TPS61240YFFT

Product Folder Sample & Buy Support & Community Tools & Software Technical Documents TPS61240, TPS61241 SLVS806D – APRIL 2009 – REVISED DECEMBER 2015 TPS6124x 3.5-MHz High Efficiency Step-Up Converter 1 Features 3 Description • • • • • • • • The TPS6124x device is a highly efficient synchronous step-up DC-DC converter optimized for products powered by either a three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-Polymer battery. The TPS6124x supports output currents up to 450 mA. The TPS61240 has an input valley current limit of 500 mA, and the TPS61241 has an input valley current of 600 mA. 1 • • • • • • • Efficiency > 90% at Nominal Operating Conditions Total DC Output Voltage Accuracy 5.0 V±2% Typical 30-μA Quiescent Current Best in Class Line and Load Transient Wide VIN Range From 2.3 V to 5.5 V Output Current up to 450 mA Automatic PFM/PWM Mode Transition Low Ripple Power Save Mode for Improved Efficiency at Light Loads Internal Softstart, 250-μs Typical Start-Up Time 3.5-MHz Typical Operating Frequency Load Disconnect During Shutdown Current Overload and Thermal Shutdown Protection Three Surface-Mount External Components Required (One MLCC Inductor, Two Ceramic Capacitors) Total Solution Size