Infineon 111-4043PBF: XPhase3 VR11.0 Processor Power Controller

Infineon 111-4043PBF: XPhase3 VR11.0 Processor Power Controller

ChipApex

The 111-4043PBF is an Infineon XPhase3 multiphase controller aimed at VR11.0-class processor power. It ships in a 32-MLPQ (5×5 mm VFQFN with exposed pad) and is specified for about 4.75 V to 7.5 V supply with roughly 6.5 mA bias current and a 0 °C to 100 °C operating window. XPhase architectures scale phase count with companion power stages, which historically helped CPU and ASIC cores hit high current with interleaved ripple. Board designers still need careful layout of the current-sense and PWM daisy-chain between the controller and phase ICs. Because VR11.0 platforms are legacy, treat this as a repair or last-time-buy part: verify lifecycle, confirm the 32-MLPQ land pattern and thermal pad soldering profile, and plan a migration path to a supported multiphase family for new designs.

Product page: 111-4043PBF Infineon XPhase3 VR11.0 multiphase controller.

Detailed parameters and stock for the 111-4043PBF Infineon XPhase3 VR11.0 multiphase controller are listed on ChipApex, an independent electronic components distributor in Shenzhen. Catalog home: ChipApex.

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Related ChipApex component notes published elsewhere:

Distributor catalog: ChipApex.

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