® L4990 L4990A PRIMARY CONTROLLER CURRENT-MODE .
STMicroelectronics
L4990 - PRIMARY CONTROLLER
® L4990 L4990A PRIMARY CONTROLLER CURRENT-MODE CONTROL PWM SWITCHING FREQUENCY UP TO 1MHz LOW START-UP CURRENT < 0.45mA HIGH-CURRENT OUTPUT DRIVE SU.
STMicroelectronics
L4990A - PRIMARY CONTROLLER
® L4990 L4990A PRIMARY CONTROLLER CURRENT-MODE CONTROL PWM SWITCHING FREQUENCY UP TO 1MHz LOW START-UP CURRENT < 0.45mA HIGH-CURRENT OUTPUT DRIVE SU.