Texas Instruments HPA070 manual References

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SLUU186 − March 2004

9References

1.Data Sheet, TPS40055 Wide-Input Synchronous Buck Controller (SLUS593).

2.Technical Brief, PowerPAD Thermally Enhanced Package (SLMA002).

16TPS40055-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 SchematicComponent Selection TPS40055 Device SelectionFrequency of Operation + R2 + f 17.82 10 *6 * 23 kInductance Value Uvlo CircuitryInput capacitor selection Output Capacitor Selection Mosfet selectionSnubber Component Selection Short Circuit ProtectionCompensation Components Test Setup DC Input SourceOutput Load Oscilloscope Probe Test JacksEfficiency and Power Loss Power Dissipation LoadTest 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 List of Materials TPS40055EVM−001 HP A070 List of MaterialsReferences Important Notice Products Applications