MAX1537 - High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers The / are dual step-down, switchmode power-supply (SMPS) controllers with synchronous rectification, intended for main 5V / 3.3V power generation in battery-powered systems. Fixed-frequency operation with optimal interleaving minimizes input ripple current from the lowest input voltages up to the 26V maximum input. Optimal 40 / 60 interleaving allows the input voltage to go down to 8.3V before duty-cycle overlap occur • Контроллеры источников питания