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In the MIC33M650 step-down module, is there a possibility/workaround to deactivate the HyperLight Load mode? Or decrease the threshold of the current needed to activate forced-PWM mode?

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  • \$\begingroup\$ The only way I see is adding a dummy load resistor. \$\endgroup\$
    – Jens
    Commented Oct 11, 2022 at 15:16
  • \$\begingroup\$ So, its not possible to deactivate that mode or decrease the threshold of the current? \$\endgroup\$
    – user220456
    Commented Oct 11, 2022 at 15:40
  • \$\begingroup\$ The design focus of this chip is efficiency and forced PWM would ruin this, so this option is not available. Do you have problems with output voltage ripple or emitted EMI spectrum? \$\endgroup\$
    – Jens
    Commented Oct 11, 2022 at 15:48
  • \$\begingroup\$ Oh, thank you. I've problems with output voltage ripple. \$\endgroup\$
    – user220456
    Commented Oct 11, 2022 at 16:46
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    \$\begingroup\$ A combination of adding a minimum load resistor and a larger output capacitor can help in some cases, but the load step response of the regulator will be affected. Check, if this is acceptable for your circuit. \$\endgroup\$
    – Jens
    Commented Oct 11, 2022 at 16:53

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