The RT7238B/C/D/E is an advanced constant on-time (ACOT®) mode synchronous step-down converter. The main control loop of RT7238B/C/D/E using an advanced constant on-time (ACOT®) mode control which provides a very fast transient response. The RT7238B/C/D/E operates from 8V to 23V input voltage. For the RT7238D, the output voltage can be adjusted between 0.6V to 5V.
Feature
- Advanced Constant On-Time (ACOT) Control
- 8V to 23V (RT7238B/C/D/E) Input Voltage Range @ 8A Output Current
- ACOTTM Mode Performs Fast Transient Response
- ACOTTM Architecture to Enable all MLCC Output Capacitor Usage
- Fixed 500kHz Switching Frequency
- High Efficient Internal Power MOSFET Switch► 27mΩ (High-Side) and 10mΩ (Low-Side)
- Adjustable Output Voltage from 0.6V to 5V (RT7238D)
- Fixed 3.3V (RT7238B/D) or 5V (RT7238C/E) LDO Output Supplies 70mA
- Pre-biased Soft-Start
- Cycle-by-Cycle Over-Current Protection
- Input Under-Voltage Lockout
- Thermal Shutdown
- Output Over/Under-Voltage Protection
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
