SynchronousStep-Dow nControllerw ithDDR Memory Termination.

Topologie: Buck
Eingangsspannung (min.): 4.50 V
Eingangsspannung (max.): 5.50 V
Ausgang 1: 2.50 V / 15.000 A

Erstveröffentlichung am 24.03.2010, Version 1.0.0 vom


The XRP614 2 is a synchronous step downswitchingcontrollerforover15 A mpspoint-ofloadsconvertersandoptimized to generateand support DDR I, II and III memoryvoltagesrequirements.Optimized to operate from standard 3 .3 V and5V rails, the XRP614 2 supportsconversionsdownto0.5V from aninputvoltage aslow as1V and canreachefficienciesofupto 9 6% .B ased ona constanton-time controlschemeand operating at a constant switchingfrequencyoverthe whole inputvoltage range,itprovidesexcellentload transientresponsewhile requiring no external compensationcomponents. Three selectable on-time optionsallow forfurtherswitchingfrequency,solutionfootprintand efficiencyoptimization.Dedicated support for DDR I, II and IImemories is also provided. The XRP614 2easily generates VDDQ (VDD) or VT T voltageswhile anonboard bufferprovidesthe bufferedVT T reference voltage.Under-voltage Lock out, short-circuit andover-currentand over-temperature protectioninsure safe operations under abnormaloperatingconditions.The XRP614 2 isavailable ina compactRoHScompliant .green./halogen free 16-pin Q FNpackage.


  • Over15A Point-of-Load Capable Downto0.5V OutputVoltage C onversion Upto9 6% Efficiency
  • Wide1.0V-5.5V InputVoltage Range Conversions Single Input3 .3 V and 5V railsOperations
  • ConstantOn-T ime Operations ConstantFrequencyOperations NoExternalC ompensation
  • DDR I,II& IIIT erminationSupport VDDQ/VDDorVT T VoltagesGeneration Buffered VT T Ref.Voltage Generation
  • Soft-Startand Enable Functions
  • U VLO,ShortCircuitand OverCurrentProtection
  • RoHS C ompliant .Green./Halogen Free3 mm x3 mm16-PinQFN Package


  Artikel Nr. SPEC Produktserie RDC
Material IR
Version Muster
744355182 PDF WE-HCI SMT-Hochstrominduktivität 0.9 0.82 WE-PERM 27 0.64 35 72 SMT

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    Topologie: Buck, Eingangsspannung (min.): 3.00 V, Eingangsspannung (max.): 3.60 V, Ausgang 1: 1.20 V / 10.000 A