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IR3502 - CONTROLLER

Description

The IR3502 control IC combined with an XPHASE3TM Phase IC provides a full featured and flexible way to implement a complete VR11.0 and VR11.1 power solution.

The IR3502 provides overall system control and interfaces with any number of Phase ICs, each driving and monitoring a single phase.

Features

  • 1 to X phase operation with matching Phase IC.
  • 0.5% overall system set point accuracy.
  • Daisy-chain digital phase timing provides accurate phase interleaving without external components.
  • Programmable 250kHz to 9MHz clock oscillator frequency provides per phase switching frequency of 250kHz to 1.5MHz.
  • Programmable Dynamic VID Slew Rate.
  • Programmable VID Offset or No Offset.
  • Programmable Load Line Output Impedance.
  • High speed.

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Full PDF Text Transcription

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IR3502 DATA SHEET XPHASE3TM CONTROL IC DESCRIPTION The IR3502 control IC combined with an XPHASE3TM Phase IC provides a full featured and flexible way to implement a complete VR11.0 and VR11.1 power solution. The IR3502 provides overall system control and interfaces with any number of Phase ICs, each driving and monitoring a single phase. The XPhase3TM architecture results in a power supply that is smaller, less expensive, and easier to design while providing higher efficiency than conventional approaches. FEATURES • 1 to X phase operation with matching Phase IC • 0.
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