TPS51727

TPS51727 www.ti.com ..................................................................................................................................................... SLUS806B – APRIL 2008 – REVISED JANUARY 2009 DUAL-PHASE, ECO-MODE™ STEP-DOWN POWER MANAGEMENT IC FOR 50-A+ APPLICATIONS FEATURES 1 2 Seamless Phase Add/Drop Enables Maximum Efficiency Under Any Load Condition Minimum External Parts Count ±8 mV VOUT Accuracy Over Line/Load/Temp. 5-Bit DAC with 0.4-V to 1.25-V Output Range Supports Wide Range of Applications Optimized Efficiency at Light & Heavy Loads Patent Pending Output Overshoot Reduction (OSR™) Accurate, Adjustable Voltage Positioning Selectable 200/300/400/500 kHz Frequency Pat. pending AutoBalance™ Phase Balancing Supports Resistor or Inductor DCR Current Sensing Accurate, Selectable Current Limit 4.5-V to 28-V Conversion Voltage Range Fast MOSFET Driver w/Integrated Boost Diode Integrated OVP Can Be Disabled Thermal Sensor and Output Power Monitor Small 6 × 6, 40-Pin QFN PowerPAD™ Package APPLICATIONS High-Current, Low-Voltage Applications for Adapter, Battery, NVDC or 5-V/12-V Rails DESCRIPTION The TPS51727 is a complete, step down controller with integrated gate drivers. The PCNT pin enables operation in dual or single-phase mode to optimize efficiency depending on the load requirements. The advanced D-CAP+™ architecture provides fast transient response with minimum output capacitance. The DAC supports VID-on-the-fly ...