Part Number: TPS54386-Q1
daer
According to the previous suggestions, the 1.2V one-way inductance L11 of TPS54386TPWPRQ1 is changed from 4.7uh to 10uf (the inductance value is too small to enter CCM mode), and the 3.3v one-way inductance L12 is changed from 10uh to 22uh.
Of the 10 machines tested, the physical vibration of the inductance at the output end of 9 machines is greater than 20Khz, which reduces the influence of physical vibration noise on the normal operation of the gyroscope, but the ripple of one machine becomes worse, and the failure effect is shown in the waveform diagram of the SW pin in attachment.
any adivce?thanks in advance
