Texas Instruments HPA070 manual Top Side Copper

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SLUU186 − March 2004

Figure 9. Top Side Copper

Figure 10. Internal Layer 1 Copper

TPS40055-Based Design Converts 12-V Bus to 1.8 V at 15 A (HPA070)

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Contents User’s Guide EVM Important Notice Dynamic Warnings and Restrictions Introduction FeaturesTPS40055EVM−001 HPA070 Schematic SchematicTPS40055 Device Selection Component SelectionFrequency of Operation + R2 + f 17.82 10 *6 * 23 kInductance Value Uvlo CircuitryInput capacitor selection Mosfet selection Output Capacitor SelectionSnubber Component Selection Short Circuit ProtectionCompensation Components DC Input Source Test SetupOutput Load Oscilloscope Probe Test JacksPower Dissipation Load Efficiency and Power LossTest Results / Performance Data Closed Loop PerformanceOutput Ripple and Transient Response EVM Assembly Drawing and PCB LayoutOutput Voltage Ripple Transient Response Top Side Copper Internal Layer 2 Copper TPS40055EVM−001 HP A070 List of Materials List of MaterialsReferences Products Applications Important Notice