TPS54620元器件资料.pdf

TPS54620 SLVS949C –MAY 2009–REVISED MAY 2011 4.5V to 17V Input, 6A Synchronous Step Down SWIFT™Converter Check for Samples: TPS54620 1 FEATURES • Adjustable Input Undervoltage Lockout • Integrated 26mΩ/ 19mΩMOSFETs • Supported by SwitcherPro™Software Tool • Split Power Rail: 1.6V to 17V on PVIN • For SWIFT™Documentation and • 200kHz to 1.6MHz Switching Frequency SwitcherPro™, visit /swift • Synchronizes to External Clock APPLICATIONS • 0.8V ±1% Voltage Reference Over Temperature • High Density Distributed Power Systems • Low 2uA Shutdown Quiescent Current • High Performance Point of Load Regulation • Monotonic Start-Up into Pre-biased Outputs • Broadband, Networking and Optical • –40°C to 150°C Operating Junction Communications Infrastructure Temperature Range • Adjustable Slow Start/Power Sequencing • Power Good Output Monitor for Undervoltage and Overvoltage DESCRIPTION The TPS54620 in thermally enhanced 3.5mm x 3.5mm QFN package is a full featured 17V, 6A synchronous step down converter which is optimized for small designs through high efficiency and integra