The RT6258B/C is an advanced constant on-time (ACOT®) mode synchronous buck converter. The main control loop of the RT6258B/C using an advanced constant on-time (ACOT®) mode control which provides a very fast transient response. The RT6258B operates from 4.5V to 23V input voltage and the RT6258CGQUF operates from 5.1V to 23V.
Feature
- 4.5V to 23V (RT6258B) and 5.1V to 23V (RT6258C) Input Voltage Range 8A Output Current
- ACOTTM Mode Performs Fast Transient Response
- ACOTTM Architecture to Enable All MLCC Output Capacitor Usage
- Fixed 750kHz (RT6258C) and 500kHz (RT6258B) Switching Frequency
- High Efficient Internal Power MOSFET Switch- 20mΩ (High-Side) and 10mΩ (Low-Side)
- Fixed 3.3V (RT6258B) and 5V (RT6258C) LDOs Output Supply 100mA
- Pre-biased Soft-Start
- Cycle-by-Cycle Over-Current Protection
- Input Under-Voltage Lockout
- Thermal Shutdown Protection
- Output Over-/Under-Voltage Protection
- Ultrasonic Mode (USM)
Applications
- Industrial and Commercial Low Power Systems
- Computer Peripherals
- LCD Monitors and TVs
- Green Electronics/Appliances
- Point of Load Regulation for High-Performance DSPs, FPGAs, and ASICs
