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The MAX1522/MAX1523/MAX1524 are simple, compactboost controllers designed for a wide range of DC-DCconversion topologies, including step-up, SEPIC, andflyback applicaTIons. They are for applicaTIons whereextremely low cost and small size are top prioriTIes.These devices are designed specifically to provide asimple applicaTIon circuit and minimize the size andnumber of external components, making them ideal forPDAs, digital cameras, and other low-cost consumerelectronics applications.These devices use a unique fixed on-time, minimum offtimearchitecture, which provides excellent efficiencyover a wide-range of input/output voltage combinationsand load currents. The fixed on-time is pin selectable toeither 0.5μs (50% max duty cycle) or 3μs (85% maxduty cycle), permitting optimization of external componentsize and ease of design for a wide range of outputvoltages.
