Description

The SC4524 is an adjustable frequency peak current mode step-down switching regulator with an integrated 2.3A, 30V switch. The SC4524 can be programmed up to 1.5MHz. This allows the use of small inductor and ceramic capacitors, resulting in very compact power supplies. The SC4524 is suitable for next generation XDSL modems, set-top boxes and point of load applications.

Features

♦ Up to 1.5 MHz Programmable Switching Frequency

♦ 2.3A Integrated Switch

♦ Wide Input Voltage Range 2.8V to 30V

♦ Peak Current-Mode Control with Cycle-by-Cycle Current Limiting

♦ Hiccup Overload Protection

♦ Soft-Start and Enable

♦ Thermal Shutdown

♦ Thermally Enhanced 8-Pin SOIC Package

♦ Fully WEEE and RoHS Compliant

Applications

♦ XDSL and Cable Modems

♦ Set-top Boxes

♦ Point of Load Applications

♦ CPE Equipment

♦ DSP Power Supplies

♦ Disk Drives