BUY UC3843N https://www.utsource.net/itm/p/11242880.html

UC3843N is a high performance current mode PWM controller manufactured by STMicroelectronics. It is available in a 8-pin DIP package. Description: The UC3843N is a current mode PWM controller designed for off-line and DC-to-DC converter applications. It features a high current totem pole output stage, an internal temperature compensated reference, an error amplifier, and a high current drive output for direct connection to the gate of a power MOSFET. Features: Internal temperature compensated reference High current totem pole output stage Error amplifier High current drive output Low start-up current Low operating current Internal soft-start Internal leading edge blanking Internal oscillator Under-voltage lockout Over-voltage protection Over-temperature protection Applications: Off-line and DC-to-DC converters Switching regulators Motor control Battery chargers Power supplies (For reference only)