Report SG3524 buck converter in Electronic Projects Design/Ideas Posted January 16, 2007 Thanks a lot. I knw sg3524 is for voltage mode control. Actually i would like to use average current mode control as my buck converter feedback control. But i hav no experience in doing electronic project, i think it is better to start familiar with the PWM first so my friend recomend me try to use this sg3524. What u means 'pins 12&13 tied to drain'??What difference if i connect it to Vin?My converter specification:input: 10-15Voutput: 5Vswitching freqquency: 100kHzoutput ripple: 1%As u say bootstrap circuitry is onboard, can u please kindly suggest me which PWM it is?