RT6204 Datasheet | Richtek

Description The RT6204 is a 60V, 500m A, 350k Hz, high-efficiency, synchronous step-down DC-DC converter with an input-voltage range of 5.2V to 60V and a programmable output-voltage range of 0.8V to 50V. It features current-mode control to simplify external pensation and to optimize transient response with a wide range of inductors and output capacitors. High efficiency can be achieved through integrated N-MOSFETs, and pulse-skipping mode at light loads. With EN pin, power-up sequence can be more flexible and shutdown quiescent current can be reduced to < 3A. The RT6204 features cycle-by-cycle current limit for over-current protection against short-circuit outputs, and user-programmable soft-start time to prevent inrush current during startup. It also includes input under-voltage lockout, output under-voltage, and thermal shutdown protection to provide safe and smooth operation in all operating conditions. The RT6204 is available in the SOP-8 (Exposed pad) package. Features - 0.8V Feedback Reference Voltage with 1.5% Accuracy - Wide Input Voltage Range : 5.2V to 60V - Output Current : 500m A - Integrated N-MOSFETs - Current-Mode Control - Fixed Switching Frequency : 350k Hz - Programmable Output Voltage : 0.8V to 50V - Low < 3A Shutdown Quiescent Current - Up to 92% Efficiency - Pulse-Skipping Mode for Light-Load Efficiency - Programmable Soft-Start Time - Cycle-by-Cycle Current Limit Protection - Input Under-Voltage Lockout, Output Under-Voltage and Thermal Shutdown Protection Applications - 4-20m A Loop-Powered Sensors - OBD-II Port Power Supplies - Low-Power Standby or Bias Voltage Supplies - Industrial Process Control, Metering, and Security Systems - High-Voltage LDO Replacement - Telemunications Systems - mercial Vehicle Power Supplies - General Purpose Wide Input Voltage Regulation Simplified Application Circuit CBOOT VIN Enable CIN CSS VIN BOOT SW RT6204 EN FB SS P GND CC CP L1 R1 CFF R2 VOUT COUT Efficiency...