TPS542951

TPS542951 www.ti.com SLVSBI4B – JULY 2012 – REVISED OCTOBER 2013 2A/3A Dual Channel Synchronous Step-Down Switcher with Integrated FET Check for Samples: TPS542951 FEATURES 1 2 D-CAP2™ Control Mode – Fast Transient Response – No External Parts Required For Loop Compensation – Compatible with Ceramic Output Capacitors Wide Input Voltage Range : 4.5 V to 18 V Output Voltage Range : 0.76V to 7.0V Highly Efficient Integrated FETs Optimized for Low Duty Cycle Applications – 150 mΩ (High Side) and 100 mΩ (Low Side) High Initial Reference Accuracy Supports Constant 2 A CH1 and 3 A CH2 Load Current Low-Side rDS(on) Loss-Less Current Sensing Adjustable Soft Start Non-Sinking Pre-Biased Soft Start 700 kHz Switching Frequency Cycle-by-Cycle Over-Current Limit Control OCL/UVLO/TSD Protections Hiccup Timer for Overload Protection Adaptive Gate Drivers with Integrated Boost PMOS Switch OCP Constant Due To Thermally Compensated rDS(on) with 4000ppm/℃ 16-Pin HTSSOP, 16-Pin VQFN Auto-Skip Eco-mode™　for High Efficiency at Light Load APPLICATIONS Point-of-Load Regulation in Low Power Systems for Wide Range of Applications – Digital TV Power Supply – Networking Home Terminal – Digital Set Top Box (STB) – DVD Player/Recorder – Gaming Consoles and Other DESCRIPTION The TPS542951 is a dual, adaptive on-time DCAP2™ mode synchronous buck converter. The TPS542951 enables system designers to complete the suite of various end equipment’s power bus regulators with ...