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8-BitProgrammable 2- to 4-PhaseSynchronousBuckController
QFNManufacturer:
Mfr.Part #:
ADP3192
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QFN
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GENERAL DESCRIPTIONThe ADP31921 is a highly efficient, multiphase, synchronous buck switching regulator controller optimized for converting a 12 V main supply into the core supply voltage required by high performance Intel processors. It uses an internal 8-bit DAC to read a voltage identification (VID) code directly from the processor, which is used to set the output voltage between 0.5 V and 1.6 V.FEATURES Selectable 2-, 3-, or 4-phase operation at up to 1 MHz per phase ±7.7 mV worst-case differential sensing error over temperature Logic-level PWM outputs for interface to external high power drivers Enhanced PWM flex mode for excellent load transient performance Active current balancing between all output phases Built-in power-good/crowbar blanking supports on-the-fly VID code changes Digitally programmable 0.5 V to 1.6 V output supports both VR10.x and VR11 specifications Programmable short-circuit protection with programmable latch-off delayAPPLICATIONS Desktop PC power supplies for Next generation Intel® processors VRM modules
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