Description

The Himalaya series of voltage regulator ICs, power modules,and chargers enable cooler, smaller, and simplerpower-supply solutions. The MAX17643 high-efficiency,high-voltage, Himalaya synchronous step-down DC-DCconverter with integrated MOSFETs operates over a 4.5Vto 60V input. The converter can deliver up to 2A and generatesoutput voltages from 0.9V up to (0.9 x VIN)V. Thefeedback (FB) voltage is accurate to within ±.4% over-40°C to +125°C. Built-in compensation across the output-voltage range eliminates the need for external components.The MAX17643 features peak-current-mode controlarchitecture and operates in fixed frequency forcedPWM mode. The current-limit settings of the MAX17643allow the device to supply load-current peaks up to 2A.This allows the device to support pulsed load applicationssuch as communication modules with minimal output-voltagedroop. The MAX17643 offers a low minimum on-timethat allows high switching frequencies and a smaller solutionsize.The device is available in a 12-pin (3mm × 3mm) TDFNpackage. Simulation models are available.ApplicationsIndustrial-Control Power SuppliesGeneral-Purpose Point-of-LoadDistributed Supply RegulationBase-Station Power SuppliesWall Transformer RegulationHigh-Voltage, Single-Board SystemsPulsed-Load ApplicationsCommunication Modules