Dual-phase Quick-PWM controller for processor core rails
The Maxim MAX1519ETL-TG075 is a dual-phase, Quick-PWM controller designed for high-current CPU core voltage regulation. It uses a proprietary Quick-PWM architecture to deliver fast transient response with minimal output capacitance — a fit for modern processors that draw load steps in the tens of amps within microseconds. The dual-phase topology interleaves switching to reduce input ripple and spread thermal load across two inductor paths, which keeps the board cooler than a single-phase solution at the same output current. This part is intended for motherboard, server, and telecom line-card applications where the core rail must track a voltage identification (VID) code or a fixed set-point with tight regulation.
What the dual-phase topology means for your power rail
A dual-phase controller interleaves two switching phases to reduce input ripple and spread thermal load. The Quick-PWM architecture uses a one-shot timer for pulse skipping during light loads.