CX8508 Wide Input 2A Step Down Converter

DESCRIPTION

The CX8508 is a monolithic synchronous buck regulator. The device integrates 100MωMOSFETS that provide 2A continuous load current over a wide operating input voltage of

4.75V to 25V. Current mode control provides fast transient response and cycle-by-cycle current limit. An adjustable soft-start prevents inrush current at turn-on. In shutdown mode, the supply current drops below 1μA. This device, available in an 8-pin SOIC package, provides a very compact system solution with minimal reliance on external components.

FEATURES

z2A Output Current

zWide 4.75V to 25V Operating Input Range

zIntegrated 100mΩPower MOSFET Switches

zOutput Adjustable from 0.925V to 20V

zUp to 95% Efficiency

zProgrammable Soft-Start

zStable with Low ESR Ceramic Output Capacitors

zFixed 340KHz Frequency

zCycle-by-Cycle Over Current Protection

zInput Under Voltage Lockout

zThermally Enhanced 8-Pin SOIC Package

APPLICATIONS

zDistributed Power Systems

zNetworking Systems

zSet-top Box

zLCD TV/Monitor

zNotebook or Mini-Book

TYPICAL APPLICATION CIRCUITS

深圳诚芯微科技有限公司

手机：杨小姐/15976884800

业务QQ:1758649721

地址：深圳市龙岗区布吉布澜路李朗创新产业园A4栋1001-1002室