Datasheet

2-1

Test Setup and Results

This chapter describes how to properly connect, setup, and use the

TPS54x80EVM-228 evaluation module. The chapter also includes test results

typical for the TPS54x80EVM-228 and covers efficiency, overall power dis-

sipation, output voltage regulation, load transients, loop response, output rip-

ple, input ripple, and different ways of power sequencing and tracking during

power up and power down.

Topic Page

2.1 Input/Output Connections 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2 Power Sequencing Test 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3 Efficiency 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4 Power Dissipation 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.5 Output Voltage Regulations 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.6 Load Transients 2-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.7 Loop Characterisitcs 2-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.8 Output and Input Voltage Ripple and Main Switching Waveforms 2-13

Chapter 2