
Linear Technology
DESCRIPTION
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.
FEATURES
■ 4-Switch Single Inductor Architecture Allows VIN
Above, Below or Equal to VOUT
■ Synchronous Switching: Up to 98.5% Efficiency
■ Wide VIN Range: 4.7V to 60V
■ 2% Output Voltage Accuracy: 1.2V ≤ VOUT < 60V
■ 6% Output Current Accuracy: 0V ≤ VOUT < 60V
■ Input and Output Current Regulation with Current
Monitor Outputs
■ No Top FET Refresh in Buck or Boost
■ VOUT Disconnected from VIN During Shutdown
■ C/10 Charge Termination and Output Shorted Flags
■ Capable of 100W or greater per IC
■ 38-Lead TSSOP with Exposed Pad
APPLICATIONS
■ Automotive, Telecom, Industrial Systems
■ High Power Battery-Powered System