19-4023; Rev 0; 4/06
KIT ATION EVALU LE B A IL A AV
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High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers
General Description
The MAX1533A/MAX1537A 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 occurs, compared to 180° out-of-phase
regulators where the duty-cycle overlap occurs when the in...