SC4525C中文资料28V 3A Step-Down Switching Regulator数据手册Semtech规格书

描述 Description

Not Recommended for New Designs, Recommended Replacement Part is SC4525ESETRT
The SC4525C 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 SC4525C is programmable up to 2MHz, allowing the use of small inductors and ceramic capacitors for miniaturization, and high input/output conversion ratio. The SC4525C is suitable for next generation XDSL modems, high-definition TVs and various point of load applications.
To convert your designs from SC4525A, please refer to our
\"SC4525A/B to SC4525C/D Design Guide\" 

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

应用 Application

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