LTC7821

FEATURES nn Wide VIN Range: 10V to 72V (80V ABS Max) nn Soft Switching for Low Noise Operation nn Phase-Lockable Fixed Frequency 200kHz to 1.5MHz nn ±1% Output Voltage Accuracy nn RSENSE or DCR Current Sensing nn Programmable CCM, DCM, or Burst Mode® Operation nn CLKOUT Pin for Multiphase Operation nn Short Circuit Protected nn EXTVCC Input for Improved Efficiency nn Monotonic Output Voltage Start-Up nn Optional External Reference nn 32-Pin (5mm × 5mm) QFN APPLICATIONS nn Intermediate Bus Converters nn High Current Distributed Power Systems nn Telecom, Datacom, and Storage Systems nn Automotive Applications LTC7821 Hybrid Step-Down Synchronous Controller DESCRIPTION The LTC®7821 uses a proprietary architecture that merges a soft switching charge pump topology with a synchronous step-down converter to provide superior efficiency and EMI performance compared to traditional switching architectures. In a typical 48V to 12V application, efficiency of greater than 97% is attainable with...