How to I determine the correct Resistor value for setting the current limit on the ST1PS02BQTR Buck Converter?

[PGund.1]

From looking at the datasheet for ST1PS02BQTR, I was able to determine what the default current limit, and that I just need to place a resistor there to set the current limit, but I didn't see any other documentation about what the relationship between the resistor value and the current limit.

[Peter BENSCH]

Please do not get confused by the words "current limit". Here it means the current limit of the high-side MOSFET switch. Its corresponding values are given in table 6, block Power switch for a resistor of:

• 0 Ohms: 750...1000mA
• 1 MOhms: 500...800mA
• 2.2 MOhms: 250mA

Please remember the function of a synchronous buck converter: it is the peak inductor current, not the DC output current.

Good luck!

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/Peter