描述 Description

The SC4525E is a constant frequency peak current-mode step-down switching regulator capable of producing 3A output current from an input ranging from 3V to 28V. The switching frequency of the SC4525E is programmable up to 2MHz, allowing the use of small inductors and ceramic capacitors for miniaturization, and high input/output conversion ratio. The SC4525E is suitable for next generation XDSL modems, high-definition TVs and various point of load applications.
To convert your designs from SC4525C/D, please refer to our
\"Converting SC4525C/D to SC4525E/F Application Note\"?

特性 Features

? Wide input range: 3V to 28V
? 3A Output Current
? 200kHz to 2MHz Programmable Frequency
? Precision 1V Feedback Voltage
? Peak Current-Mode Control
? Cycle-by-Cycle Current Limiting
? Hiccup Overload Protection with Frequency Foldback
? Soft-Start and Enable
? Thermal Shutdown
? Thermally Enhanced 8-pin SOIC Package
? Fully RoHS and WEEE compliant

應(yīng)用 Application

·XDSL and Cable Modems
·Set Top Boxes
·Point of Load Applications
·CPE Equipment
·DSP Power Supplies
·LCD and Plasma TVs

簡介

SC4525E屬于集成電路（IC）的穩(wěn)壓器-DC-DC開關(guān)穩(wěn)壓器。由制造生產(chǎn)的SC4525E穩(wěn)壓器 - DC-DC 開關(guān)穩(wěn)壓器DC-DC 開關(guān)穩(wěn)壓器 PMIC（電源管理集成電路）產(chǎn)品族中的產(chǎn)品是元器件級設(shè)備，用于需要穩(wěn)定 DC 輸入電壓和/或?qū)⑵滢D(zhuǎn)換為不同幅度的輸出電壓的應(yīng)用。這些器件與稱為“控制器”PMIC 的類似產(chǎn)品的區(qū)別在于集成了主開關(guān)元件，設(shè)備提供的電力會通過該元件。