OB2263AP Current Mode PWM Control IC,Low Power Switching Power Supply IC,0B2263AP : Amazon.ca: Industrial & Scientific
IIVVERR UC3843B Voltage Mode Modulator Control Circuit PWM Controller SOIC (UC3843B Circuito de control de modulador de modo de voltaje PWM Controlador SOIC - - Amazon.com
IIVVERR Electronic Parts FDS9435A SMD/SMT Package Type 8 Pin PWM Controller IC (Partes electrónicas FDS9435A Tipo de paquete SMD/SMT 8 pines Controlador PWM IC - - Amazon.com