Texas Instruments HPA070 manual Internal Layer 2 Copper

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SLUU186 − March 2004

Figure 11. Internal Layer 2 Copper

Figure 12. Bottom Layer Copper

14TPS40055-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 Features IntroductionSchematic TPS40055EVM−001 HPA070 SchematicFrequency of Operation Component SelectionTPS40055 Device Selection + R2 + f 17.82 10 *6 * 23 kInput capacitor selection Uvlo CircuitryInductance Value Output Capacitor Selection Mosfet selectionCompensation Components Short Circuit ProtectionSnubber Component Selection Output Load Test SetupDC Input Source Oscilloscope Probe Test JacksTest Results / Performance Data Efficiency and Power LossPower Dissipation Load Closed Loop PerformanceOutput Voltage Ripple Transient Response EVM Assembly Drawing and PCB LayoutOutput Ripple and Transient Response Top Side Copper Internal Layer 2 Copper List of Materials TPS40055EVM−001 HP A070 List of MaterialsReferences Important Notice Products Applications