TPS61241

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS61240, TPS61241 SLVS806D – APRIL 2009 – REVISED DECEMBER 2015 TPS6124x 3.5-MHz High Efficiency Step-Up Converter 1 Features 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 <13 mm2 Available in a 6-Pin DSBGA and 2-mm × 2-mm WSON Package 2 Applications USB-OTG Applications Portable HDMI Applications Cell Phones, Smart Phones PDAs, Pocket PCs Portable Media Players Digital Cameras VIN CIN 2.2 mF Typical Application Schematic L 1 mH TPS61240 L VOUT VIN FB COUT 4.7 mF EN GND V 5V OUT 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 50...