View fan7601 datasheet:

www.fairchildsemi.com FAN7601 Green Current Mode PWM Controller Features Description • Green Current Mode PWM Control The FAN7601 is a green programmable frequency current • Low Operating Current: Max 4mA mode PWM controller. It is specially designed for the • Burst Mode Operation off-line adapter application and the auxiliary power supplies • Internal High Voltage Start-up Switch which require high efficiency at a light load and no load. • Under Voltage Lockout (UVLO): 12V/8V The internal high voltage start-up switch and the burst mode • Latch Protection & Soft Start Function reduce the power loss. The FAN7601 includes some • Over Voltage Protection: 19V protections such as latch protection and over voltage • Operating Frequency up to 300kHz protection. The latch protection