Top Side Component Assembly | Texas Instruments TPS40090EVM-002

SLUU195 − June 2004

8 EVM Assembly Drawing and PCB Layout

Figure 15. Top Side Component Assembly

Figure 16. Bottom Assembly

20TPS40090 Multi-Phase Buck Converter and TPS2834 Drivers Steps-Down from 12-V to 1.5-V at 100 A

Image 20

Texas Instruments TPS40090EVM-002 manual EVM Assembly Drawing and PCB Layout, Top Side Component Assembly

Contents

User’s Guide EVM Important Notice Dynamic Warnings and Restrictions Introduction Features Schematic Transen Component Selection Frequency of Operation Inductance Value Input Capacitor Selection Output Ripple Cancellation and Capacitor Selection PH, D + if N PH v 1, DI OUTD, DI OUT N PH, D Vout Iripple + L Mosfet Selection Current Sensing Overcurrent Limit Protection OUT Compensation Components R11 Test Setup Connections for the Test Efficiency and Power Loss Total Power Loss Output CurrentTest Results and Performance Data Overall Efficiency Output Current Output Ripple and Noise Gain and Phase Oscillator FrequencyClosed-Loop Performance Transient Response Transient Response Start up with Pre-Biased Output J11 Short Circuit Layout Considerations EVM Assembly Drawing and PCB Layout Top Side Component Assembly Top Side Copper Internal 2 Power Plane Bottom Layer Copper List of Materials QTY Load Transient Circuit Important Notice Products Applications