U3525 Datasheet | Unisonic Technologies

UNISONIC TECHNOLOGIES CO., LTD LINEAR INTEGRATED CIRCUIT REGULATING PWM IC - DESCRIPTION The UTC U3525 is a pulse width modulator IC and designed for switching power supplies application to improve performance and reduce external parts usage. A shutdown terminal controls both the soft-start circuitry and the output stages, providing instantaneous turn off through the PWM latch with pulsed shutdown, as well as soft-start recycle with longer shutdown mands. The output stage Features NOR logic, giving a LOW output for an OFF state. An under-voltage lockout circuitry, which keeps the outputs off and the soft-start capacitor discharged for sub-normal input voltages, includes...