High-current 360-A static / 600-A peak core PMBus voltage 12-phase reference design for ASICs
Description
This reference design is a a 12-phase power management bus (PMBus) buck converter powering datacenter hardware accelerator: enterprise switch and router application-specific integrated circuit (ASIC) core rails. It provides 360 A of continuous current and 600 A of peak current at 0.85-V nominal voltages. It uses twelve CSD95480 common footprint 70-A smart power stages. Design includes an on-board high speed dynamic load for testing to stringent dynamic load response requirements of high speed ASICs. The reference design includes a test report showing these capabilities and enables a cut-and-paste design for powering high-current ASIC core rails with PMBus.
Features
- Uses twelve CSD95480 common footprint 70-A smart power stagesFusion Digital Power Designer GUI enables easy prototyping through PMBus and manufacturing script generationDCAP+ control mode enables the fastest load transient response and output capacitor (including ceramic cap) reductionHigh speed on board dynamic load for testing to stringent dynamic load requirementsTested: cut-and-paste design for powering high-current ASIC core rails
Applications
- Data center switch
Product Categories
- Power management
| Application Area | End Equipment |
|---|---|
| Data center switch | https://www.ti.com/solution/data-center-switches#referencedesigns |