RICHTEK RT6210GSP

The RT6210 is a 80V, 500mA, 350kHz, high-efficiency, synchronous step-down DC-DC converter with an input voltage range of 5.2V to 80V and a programmable output voltage range of 0.8V to 72V. It features current-mode control to simplify external compensation 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 <3μA. The RT6210 features cycle-by-cycle current limit for overcurrent 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 RT6210 is available in the SOP-8 (Exposed pad) package.

• 0.8V Feedback Reference Voltage with ±1.5% Accuracy
• Wide Input Voltage Range: 5.2V to 80V
• Output Current: 500mA
• Integrated N-MOSFETs
• Current-Mode Control
• Fixed Switching Frequency: 350kHz
• Programmable Output Voltage: 0.8V to 72V
• Low <3μA 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

• 4-20mA 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
• Telecommunications Systems
• Commercial Vehicle Power Supplies
• General Purpose Wide Input Voltage Regulation