AT7450 Datasheet | iAT

2A-60V LED Step-Down Converter Features VIN Max = 60V VFB = 200m V Frequency 52k Hz ILED Max 2A On/Off input may be used for the Analog Dimming Thermal protection Cycle-by-cycle current limit ILOAD max =2A VOUT from 0.2V to 55V SOP-8 Package Available Immense Advance Tech. DESCRIPTION AT7450 is the monolithic IC designed for a step-down DC/DC converter capable of driving 2A load without an additional transistor. The input voltage range is up to 60V. Its feedback voltage, VFB, is 200m V. The AT7450 operates at a switching frequency of 52k Hz. The external shutdown function is controlled by a logic level on the ON/OFF pin and then the circuit es into the standby mode with ISTBY~50µA (typ.). The ON/OFF pin may be used for the analog dimming. As the voltage on the ON/OFF pin is increased from 0.07V to 0.67V, the voltage on the FB pin falls from 200m V to 0. The self-protection Features include a cycle-by-cycle current limit and a thermal protection. APPLICATION Pre-Regulator for...