Internal 37mΩ On-Resistance MOSFETs 3A Output PWM Step-Down Regulator ±1% Output Accuracy over Load, Line, and Temperature Operates from 2.35V to 3.6V Input Supply Adjustable Output from 0.6V to (0.9 x VIN) 500kHz to 2MHz Adjustable Frequency Allows All-Ceramic Capacitor Design Programmable Soft-Start Time 24-Pin, 4mm x 4mm Thin QFN Package REFIN for DDR Termination and Tracking Applications Surface-Mount Components Assembled and Tested
- ASIC/CPU/DSP Core and I/O Voltages
- Base-Station Power Supplies
- DDR Power Supplies
- RAID Control Power Supplies
- Telecom and Networking Power Supplies
The MAX8643 evaluation kit (EV kit) is a fully assembled and tested PCB that demonstrates the capabilities of the MAX8643 integrated 3A step-down regulator. The EV kit generates a +1.8V output voltage at load currents up to 3A from a 2.35V to 3.6V input voltage range. The MAX8643 switches at 1MHz and up to 95% efficiency with the supplied components.