LM5021-1QDGKRQ1

汽车类 30V、1MHz 电流模式 PWM 控制器 8-VSSOP -40 to 125

The LM5021 off-line pulse width modulation PWM controller contains all of the features needed to implement highly efficient off-line single-ended flyback and forward power converters using current-mode control. The LM5021 features include an ultra-low 25 µA start-up current, which minimizes power losses in the high voltage start-up network. A skip cycle mode reduces power consumption with light loads for energy conserving applications ENERGY STAR®, CECP, and so forth. Additional features include under-voltage lockout, cycle-by-cycle current limit, hiccup mode overload protection, slope compensation, soft-start and oscillator synchronization capability. This high performance 8-pin IC has total propagation delays less than 100 ns and a 1-MHz capable oscillator that is programmed with a single resistor.