【Fairchild Semiconductor】TL494CDX,电压模式 PWM 控制器
【ON Semiconductor】TL494CN,IC REG CTRLR PWM VM 16-DIP
【Texas Instruments】TL494CNE3,
【Texas Instruments】TL494CNE4,IC REG CTRLR BST FLYBK PWM 16DIP
【ON Semiconductor】TL494CNG,IC REG CTRLR PWM VM 16-DIP
TL494CNG4,IC REG CTRLR MULT TOPOLOGY 16DIP
TL494CNS,PWR MGMT VOLTAGE REFERENCE
【Texas Instruments】TL494CNSR,IC REG CTRLR BST FLYBK PWM 16SOP