Description

100V VIN and VOUT Synchronous 4-SwitchBuckBoost DC/DC Controller with PassThru Features: Pin-Selectable PassThru or Fixed Output CCM, DCM, Burst Mode® Operation Programmable Non-Switching PassThru Window 18μA PassThru Mode IQ with 99.9% Efficiency VIN Range: 2.8V to 100V (4.5V for Start-Up) VOUT Range: 1V to 100V Reverse Input Protection to –40V ±1.25% Output Voltage Accuracy (–40°C to 125°C) ±3% Accurate Current Monitoring ±5% Accurate Current Regulation 10V Quad N-Channel MOSFET Gate Drivers EXTVCC LDO Powers Drivers from VOUT/External Rail ±20% Cycle-by-Cycle Inductor Current Limit No Top MOSFET Refresh Noise in Buck or Boost Fixed/Phase-Lockable Frequency: 80kHz to 400kHz Spread Spectrum Frequency Modulation for Low EMI Power Good Output Voltage/Overcurrent Monitor Available in a 38-Lead TSSOP and 40-Lead (6mm x 6mm) QFN Packages