Description

The SC4518H is a current mode switching regulator with an integrated switch, operating at 600kHz with separate sync and enable functions. The integrated switch allows for cost effective low power solutions (peak switch current 2 amps). The sync function allows customers to synchronize to a faster clock in order to avoid frequency beating in noise sensitive applications. High frequency of operation allows for very small passive components. Current mode operation allows for fast dynamic response and instantaneous duty cycle adjustment as the input varies (ideal for CPE applications where the input is a wall plug power).

Features

◆ Wide operating voltage range: 4.4V to 24V

◆ Integrated 2 Amp switch

◆ 600kHz frequency of operation

◆ Current mode controller

◆ Synchronizable to higher frequency up to 1.2MHz

◆ Precision enable threshold

◆ SO-8 EDP package. Lead free product, fully WEEE

and RoHS compliant

Applications

◆ XDSL modems

◆ CPE equipment

◆ DC-DC point of load applications

◆ Portable equipment

SC4518H属于集成电路（IC） > 稳压器 - DC-DC 开关稳压器。Semtech Corporation制造生产的SC4518H稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。