LT3800IFE#PBF, Switching Voltage Regulators Hi-V Sync C Mode Buck Cntr

LT®3800 is a 200KHz fixed frequency high voltage synchronous current mode step-down switching regulator controller. The IC drives standard gate N-channel power MOSFETs and can operate with input voltages from 4V to 60V. An on-board regulator provides IC power directly from VIN and provides for output-derived power to minimize VIN quiescent current. MOSFET drivers employ an internal dynamic bootstrap feature, maximizing gate-source "ON" voltages during normal operation for improved operating efficiencies. It incorporates a programmable soft-start that directly controls the voltage slew rate of the converter output for reduced start-up surge currents and overshoot errors. Application includes 12V and 42V automotive and heavy equipment, 48V telecom power supplies, avionics and industrial control systems, distributed power converters. • Adaptive nonoverlap circuitry prevents switch shoot-through• Output slew rate controlled soft-start with auto-reset• Standard gate N-channel power MOSFETs• Current limit unaffected by duty cycle• Reverse overcurrent protection• Operating voltage range from 4 to 60V (TA = 25°C, VIN = 20V)• Typical enable threshold (rising) is 1.35V (TA = 25°C, VIN = 20V)• 16-lead plastic TSSOP package• Temperature rating range from -40°C to 125°C