This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPSM63606: Switching Frequency Discrepancy

Part Number: TPSM63606


Per TPSM63606 datasheet page 18 equation 6, the switching frequency calculation is based on VIN and VOUT. For example, when VIN = 12V and VOUT = 7.5V, the calculated switching frequency is ~700kHz.

However if I refers to page 16 Table 6-1, the suggest switching frequency is 1.2MHz to 1.6MHz which is way off from what I calculated.

I also try to generate the same setting in Webench and Webench shows that the Rt is 9.76kohm or translated to 1.31MHz. In this case, Webench result is tally to Table 6-1 but not correlated to Equation 6.

Kindly verify on this.



Soo Cheng