SLUAAO0 june   2023 TPS563207S

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Lower Output Voltage Than Reference by AVS Control
  6. 3Simulation Result with TPS563252
  7. 4Test Results with TPS563252
  8. 5Summary
  9. 6References

Test Results with TPS563252

This AVS process is also tested on TPS563252EVM board. Please refer to the detailed EVM information in PS563252 and TPS563257 Step-Down Converter Evaluation Module User's Guide. Update the BOM to match the Simplis schematic.

Figure 4-1 to Figure 4-3 show the steady state status. From steady state waveform, output voltage and switching waveform are stable. Figure Figure 4-4 shows the dynamic change about output voltage with external test voltage. Channel 1 is Vtest voltage with dynamic change from 1.07 V to 5.77 V. Output voltage change by following Vtest voltage. From the waveform, output voltage smoothly change with external output voltage. Figure 4-5 to Figure 4-7 show the bode plot at difficult output voltage. Phase margin and gain margin show the stable. Figure 4-8 combine the three bode plot together to check if there is difference. From the waveform, the external test voltage have no effect on bode plot.

GUID-20230601-SS0I-XRXK-JKQC-7PMXVRH82ZDH-low.svgFigure 4-1 Steady State at 0.7 V Output Voltage and 1 V External Test Voltage
GUID-20230601-SS0I-M2XF-G8ZX-HGGGLBMS1F3L-low.svgFigure 4-3 Steady State at 0.5 V Output Voltage and 6 V External Test Voltage
GUID-20230601-SS0I-ZZQT-SRCL-1WTQVBHWWXVK-low.svgFigure 4-5 Bode Plot at 0.5 V Output Voltage
GUID-20230601-SS0I-5CZT-SCVM-SZXX3HLSRDMV-low.svgFigure 4-7 Bode Plot at 0.7 V Output Voltage
GUID-20230601-SS0I-KPLP-ZMH2-1P7BDDX9H52K-low.svgFigure 4-2 Steady State at 0.6 V Output Voltage and 3 V External Test Voltage
GUID-20230601-SS0I-W3GW-NK2G-BN82FHXZ43CP-low.svgFigure 4-4 Dynamic Change for Output Voltage with External Test Voltage
GUID-20230601-SS0I-KDF6-4BGM-NFDSXK3TVVJB-low.svgFigure 4-6 Bode Plot at 0.6 V Output Voltage
GUID-20230601-SS0I-KNSL-LFMN-7L4Z8ZSS9HDW-low.svgFigure 4-8 Bode Plot