SLVAE22A July 2018 – March 2019 TPS54334 , TPS65251 , TPS65251-1 , TPS65251-2 , TPS65251-3 , TPS652510 , TPS65261 , TPS65263 , TPS65263-1Q1 , TPS65263-Q1 , TPS65265 , TPS65266 , TPS65266-1 , TPS65270 , TPS65273V , TPS65276V , TPS65279 , TPS65279V
5.2 Measured Bode Plot vs. Calculated Bode Plot
Figure 6 shows the measured Bode Plot versus a simulated Bode Plot under a 2 A loading condition. This is performed by the TPS65261 SIMPLIS model with the above measured, calculated parameters GM-PS, and Se. The measured result is well-matched with a simulated result. The simulated GBW is 41 KHz and phase margin is 68 degrees. The lab-measured GBW is 42 KHz and phase margin is 66 degrees.
Figure 6. Measured Bode Plot vs. Calculated Bode Plot