LTC3646

FEATURES nn Wide Input Voltage Range: 4.0V to 40V nn 1A Guaranteed Output Current nn High Efficiency: Up to 95% nn Wide Output Voltage Range nn LTC3646: 2.0V to 30V nn LTC3646-1: 0.6V to 15V nn ±1% Accurate Reference Voltage nn Internal or External Compensation nn Switching Frequency Adjustable and Synchronizable: 200kHz to 3MHz nn Selectable High Efficiency Burst Mode® Operation or Forced Continuous Mode nn 14 Lead 3mm × 4mm DFN or Thermally Enhanced 16-Lead MSOP Packages APPLICATIONS nn Point of Load Power Supplies nn Intermediate Bus Power nn Automotive Applications LTC3646/LTC3646-1 40V, 1A Synchronous Step-Down Converter DESCRIPTION The LTC®3646 is a high efficiency, step-down DC/DC converter with internal high side and synchronous power FETs. It draws only 140µA typical DC supply current in Burst Mode operation at no load while maintaining output voltage regulation. The LTC3646 can supply up to a 1A load, and its combination of Burst Mode operation, integrated power switche...