Help finding PWM IC with marking on device '0L346' not sure whether it starts with 0 or O. package of device is sot23-6
Possibly OB2262. Normaly very easy to find same or equal this kind of sot23-6 type pwm ics. Check out also Fairchild web page product catalog. First star to to compare with GND, Vdd , Fb pins and after some try u will find same or equal.