RT6543A Overview
The RT6543A/B PWM controller provides high efficiency, excellent transient response, and high DC output accuracy for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM. The RT6543A/B supports on chip voltage programming function between 0V and 1.8V by controlling VID1/VID0 inputs. pared with conventional current-mode PWMs, the RT6543A/B achieves high efficiency without any...
RT6543A Key Features
- A High Efficiency Step-Down DC-DC Controller
- Built-in 1% Reference Voltage
- 2-Bit Programmable Output Voltage with Integrated
- Adjustable Switching Frequency
- Input Voltage Range : 3V to 24V
- Internal Soft-Start to Reduce Inrush Current
- Capability of Driving Large Synchronous Rectifier
- Power Good Indicator
- Cycle-by-Cycle Current Limit
- Over-/Under-Voltage Protection