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TIDA-01512 Reference Design

Texas Instruments

PMBus Voltage Regulator Reference Design for NXP QorIQ LS2085A/88A Processors

Description

TIDA-01512 uses the TPS53681 multiphase controller and CSD95490Q5MC Smart Power Stages to implement a high-performance design suitable for powering NXP QorIQ Communications Processors.The dual outputs of the controller target the 60-ATDC: 1.0-V core rail with a four-phase design and a 30-ATDC: 1.2-V auxilliary rail. Utilizing smart power stages and integrated PMBus™ functionality allows for easy output voltage setting: telemetry of key design parameters: and compensation adjustment.During validation a >50% reduction in output capacitance was seen over NXP 's reference board.

Features
  • Dual Rail 4+2 Design - Targeting LS2085A/88A VDD and GVDD RailsPMBus monitoring of VIN: VOUT: IOUT: PIN: and POUTDual Rail Temperature MonitoringPeak Efficiencies of 92% and 94% for VDD and GVDD Rails>50% reduction in COUT over NXP Eval Board
Applications
  • Edge router
  • Intra-DC interconnect (metro)
  • Inter-DC interconnect (long-haul
  • submarine)
  • Core router
  • Cell site gateway router
Product Categories
  • Power management

End Equipment Reference Diagrams

Application Area End Equipment
Edge router https://www.ti.com/solution/edge-router#referencedesigns
Intra-DC interconnect (metro) https://www.ti.com/solution/intra-dc-interconnect-metro#referencedesigns
Inter-DC interconnect (long-haul https://www.ti.com/solution/inter-dc-interconnect-long-haul-submarine#referencedesigns
submarine) https://www.ti.com/solution/core-router#referencedesigns
Core router https://www.ti.com/solution/cell-site-gateway-router#referencedesigns
Additional details