Yes, we could help with offering these alternatives for part LM5033SD/NOPB as IC REG CTRLR PUSH-PULL 10WSON from Texas Instruments, that is VA Discontinued, for all our customers:
LM5033SD/NOPB as Marketplace direct substitute LM5033 100V PUSH-PULL VOLTAGE MOnitor from National or
LM5033SD as Marketplace obsoleted product SWITCHING CONTROLLER, VOLTAGE-MOnitor originally from former National Semiconductor with actually 435 pcs on stock shipping in approximately seven days via Rochester Electronics LLC.