SC4911数据手册集成电路（IC）的PMIC-稳压器-DCDC开关式控制器规格书PDF

描述 Description

The SC4911 is a highly integrated bias/primary side PWM controller designed for off-line or isolated dc-dc converters in telecommunication and data communication applications. The high degree of integration minimizes the amount of discrete parts needed and leads to substantial cost and space saving converter designs.

特性 Features

·Programmable switching frequency up to 500kHz
·Line UVLO Protection
·Undervoltage Lockout
·Low startup current (45μA)
·Cycle by cycle current limit
·8 pin MSOP. Available in Lead-free, fully WEEE and RoHS compliant

应用 Application

·Telecom isolated converters
·Offline isolated power supplies
·Instrumentation power supplies
·Battery chargers

简介

SC4911属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由制造生产的SC4911DC-DC 开关控制器PMIC（电源管理集成电路）DC 到 DC 开关式控制器是用于高效率电路的稳压 IC，其配置为生成高于（突升或步升）或低于（突降或步降）输入电源的输出电源电压。其他拓扑结构可能包括：降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。