FEATURES
n Wide VIN Range: 4V to 60V (65V Abs Max) n Low Operating IQ: 50μA n Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 24V n RSENSE or DCR Current Sensing n Phase-Lockable Frequency (320kHz to 2.25MHz) n Programmable Fixed Frequency (320kHz to 2.25MHz) n Selectable Continuous, Pulse-Skipping or Low Ripple Burst Mode® Operation at Light Load n Selectable Current Limit n Very Low Dropout Operation: 98% Duty Cycle n Adjustable Output Voltage Soft-Start or Tracking n Power Good Output Voltage Monitor n Output Overvoltage Protection n Low Shutdown IQ: < 14μA n Internal LDO Powers Gate Drive from VIN or EXTVCC n No Current Foldback During Start-Up n Small 20-Pin 3mm × 4mm QFN Package APPLICATIONS
n Automotive Always-On Systems n Battery Powered Digital Devices n Distributed DC Power Systems LTC7800 Low IQ, 60V, High Frequency Synchronous Step-Down Controller DESCRIPTION
Analog Devices
