MAX1584, MAX1585 5-Channel Slim DSC Power Supplies

The MAX1584 MAX1585 provide a complete power-supply solution for slim digital cameras. They improve performance and lower component count and size compared to conventional multichannel controllers in 2-cell AA, 1-cell Li+, and dual-battery designs. On-chip MOSFETs provide up to 95% efficiency for critical power supplies, while additional channels operate with external FETs for optimum design flexibility.
The MAX1584 MAX1585 include five high-efficiency DC-DC conversion channels: Step-up DC-DC Converter with on-chip FETs Step-down DC-DC Converter with on-chip FETs Three PWM DC-DC Controllers for CCD LCD LED or other functions The Step-down DC-DC Converter CAN operate directly from the battery or from the Step-up output, providing boost-buck capability with a compound efficiency of up to 90%. Both devices include three PWM DC-DC controllers: the MAX1584 includes two Step-up controllers and one Step-down controller, while the MAX1585 includes one Step-up controller, one inverting controller, and one Step-down controller. All DC-DC channels operate at one fixed frequencysettable from 100kHz to 1MHzto optimize size, cost, and efficiency. Other features include soft-start, power-OK outputs, and overload protection. The MAX1584 MAX1585 are available in space-saving, 32-pin thin QFN packages. An evaluation kit is available to expedite designs.
By Maxim Integrated Products