Description

The SC4517A is a current mode switching regulator with an integrated switch, operating at 1.25MHz with separate sync & enable functions. The integrated switch allows for cost effective low power solutions (peak switch current 1.5 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 & instantaneous duty cycle adjustment as the input varies (ideal for CPE applications where the input is a wall plug power).

Features

◆ Integrated 1.5 Amp switch

◆ 1.25MHz frequency of operation

◆ Current mode controller

◆ Synchronizable to higher frequency up to 2MHz

◆ 6µA low shutdown current

◆ MSOP-8 and MLPD-8 Lead-free packages. This

product is fully WEEE and RoHS compliant

Applications

◆ XDSL modems

◆ CPE equipment

◆ DC-DC point of load applications

◆ Portable equipment

SC4517AIMSTRT属于集成电路（IC） > 稳压器 - DC-DC 开关稳压器。Semtech Corporation制造生产的SC4517AIMSTRT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。