TPS54328

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS54328 SLVSAN2D – NOVEMBER 2010 – REVISED AUGUST 2016 TPS54328 4.5-V to 18-V Input, 3-A Synchronous Step-Down Converter With Eco-Mode™ 1 Features 1 D-CAP2™ Mode Enables Fast Transient Response Low Output Ripple and Allows Ceramic Output Capacitor Wide Input Voltage Range: 4.5 V to 18 V Output Voltage Range: 0.76 V to 7 V Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications – 100 mΩ (High-Side) and 70 mΩ (Low-Side) High Efficiency, Less Than 10 µA at Shutdown High Initial Bandgap Reference Accuracy Adjustable Soft Start Pre-Biased Soft Start 700-kHz Switching Frequency (fSW) Cycle-By-Cycle Overcurrent Limit Auto-Skip Eco-Mode™ for High Efficiency at Light Load 2 Applications Wide Range of Applications for Low Voltage Systems – Digital TV Power Supplies – High Definition Blu-ray Disc™ Players – Networking Home Terminals – Digital Set Top Boxes (STB) 3 Description The TPS54328 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54328 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54328 uses the D-CAP2 mode control that provides a fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode a...