LT3791-1
60V 4-Switch Synchronous
Buck-Boost Controller
Features Description 4-Switch Single Inductor Architecture Allows VIN
Above, Below or Equal to VOUT
n Synchronous Switching: Up to 98.5% Efficiency
n Wide V Range: 4.7V to 60V
IN
n 2% Output Voltage Accuracy: 1.2V ≤ V
OUT < 60V
n 6% Output Current Accuracy: 0V ≤ V
OUT < 60V
n Input and Output Current Regulation with Current
Monitor Outputs
n No Top FET Refresh in Buck or Boost
n V
OUT Disconnected from VIN During Shutdow C/10 Charge Termination and Output Shorted Flags
n Capable of 100W or greater per IC
n 38-Lead TSSOP with Exposed Pad The LT®3791-1 is a synchronous 4-switch buck-boost voltage/current regulator controller. The controller can regulate
output voltage, output current, or input current with input
voltages above, below, or equal to the output voltage. The
constant-frequency, current mode architecture allows its
frequency to be adjusted or synchronized from 200kHz …