Texas Instruments TPS40090EVM-002 manual Bottom Layer Copper

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SLUU195 − June 2004

Figure 21. Internal 4

Figure 22. Bottom Layer Copper

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

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Contents User’s Guide EVM Important Notice Dynamic Warnings and Restrictions Introduction Schematic FeaturesTransen Frequency of Operation Component SelectionInput Capacitor Selection Inductance ValuePH, D + if N PH v 1, DI OUTD, DI OUT N PH, D Output Ripple Cancellation and Capacitor SelectionIripple + L VoutCurrent Sensing Mosfet SelectionOUT Overcurrent Limit ProtectionR11 Compensation ComponentsConnections for the Test Test SetupOverall Efficiency Output Current Efficiency and Power LossTotal Power Loss Output Current Test Results and Performance DataOutput Ripple and Noise Gain and Phase Oscillator FrequencyClosed-Loop Performance Transient Response Transient ResponseJ11 Short Circuit Start up with Pre-Biased OutputLayout Considerations Top Side Component Assembly EVM Assembly Drawing and PCB LayoutTop Side Copper Internal 2 Power Plane Bottom Layer Copper QTY List of MaterialsLoad Transient Circuit Products Applications Important Notice