Texas Instruments TPS40090EVM-002 manual Transen

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SLUU195 − June 2004

TRANS_EN

Figure 2. TPS40090EVM−002 Schematic Part 2 − Driver Circuit and Load Transient Generator

6TPS40090 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 Features SchematicTransen Component Selection Frequency of OperationInductance Value Input Capacitor SelectionOutput Ripple Cancellation and Capacitor Selection PH, D + if N PH v 1, DI OUTD, DI OUT N PH, DVout Iripple + LMosfet Selection Current SensingOvercurrent Limit Protection OUTCompensation Components R11Test Setup Connections for the TestTest Results and Performance Data Efficiency and Power LossTotal Power Loss Output Current Overall Efficiency Output CurrentGain and Phase Oscillator Frequency Closed-Loop PerformanceOutput Ripple and Noise Transient Response Transient ResponseStart up with Pre-Biased Output J11 Short CircuitLayout Considerations EVM Assembly Drawing and PCB Layout Top Side Component AssemblyTop Side Copper Internal 2 Power Plane Bottom Layer Copper List of Materials QTYLoad Transient Circuit Important Notice Products Applications