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Texas Instruments TPS40090EVM-002 manual Top Side Copper . Internal 1 Ground Plane, SLUU195 − June

Models: TPS40090EVM-002

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Figure 17. Top Side Copper

SLUU195 − June 2004

Figure 17. Top Side Copper

Figure 18. Internal 1 (Ground Plane)

TPS40090 Multi-Phase Buck Converter and TPS2834 Drivers Steps-Down from 12-V to 1.5-V at 100 A

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Texas Instruments TPS40090EVM-002 manual Top Side Copper . Internal 1 Ground Plane, SLUU195 − June

Contents

Using the TPS40090EVM-002 User’s GuideUser’s Guide EVM IMPORTANT NOTICE DYNAMIC WARNINGS AND RESTRICTIONS Contents 1 Introduction 2 Features 3 Schematic 4 Component Selection Systems Power5 Test Setup 6 Test Results/Performance Data 7 Layout Considerations 8 EVM Assembly Drawing and PCB Layout 9 List of MaterialsSchematic FeaturesTable 1. TPS40090EVM−002 Performance Summary SLUU195 − JuneTRANSEN SLUU195 − June4.1 Frequency of Operation 4 Component Selection4.2 Inductance Value 4.3 Input Capacitor SelectionIOUT k N PH, D + if N PH v 1, DI OUTD, DI OUT N PH, D 4.4 Output Ripple Cancellation and Capacitor SelectionK N PH, D + Figure 5. Output Ripple Current Cancellation4.5 MOSFET Selection 4.6 Current Sensing0.6mH 4.7 Overcurrent Limit Protection 4.8 Compensation Components + 354 kHz2p R11 C11 Figure 7. Connections for the Test 5 Test Setup6 Test Results and Performance Data 6.1 Efficiency and Power Loss6.3 Output Ripple and Noise 6.2 Closed-Loop PerformanceFigure 10. Bode Plot Figure 11. Output NoiseFigure 12. Transient Response 6.4 Transient Response6.5 Start up with Pre-Biased Output Figure 13. J11 Short CircuitFigure 14. J11 Open Circuit 7 Layout Considerations 8 EVM Assembly Drawing and PCB Layout Figure 15. Top Side Component Assembly Figure 16. Bottom AssemblySLUU195 − June SLUU195 − June Figure 17. Top Side Copper Figure 18. Internal 1 Ground PlaneSLUU195 − June Figure 19. Internal 2 Power Plane Figure 20. InternalSLUU195 − June Figure 21. Internal Figure 22. Bottom Layer Copper9 List of Materials Table 2. List of MaterialsSLUU195 − June Reference SLUU195 − JuneDescription SizeIMPORTANT NOTICE ProductsApplications